Aula 29 – Loja Online – Django – Tutorial Bootstrap – Breakpoints
Aula 29 – Loja Online – Django – Tutorial Bootstrap – Breakpoints
Breakpoints mobile first
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Código final da aula:
https://github.com/toticavalcanti/django_ecommerce/tree/breakpoints
Mobile first
Chegou a hora de usar os pontos de ruptura, em inglês, breakpoints, para adequar a tela do browser as configurações dos dispositivos (mobile, tablet, desktop, laptop, etc.).
O bootstrap é mobile first.
Isso que dizer que ele primeiro se preocupa com o formato de tela de celular, antes de qualquer outro dispositivo.
O bootstrap prioriza a experiência de usuário mobile.
Breakpoints
Breakpoints são “coisinhas” como essas aí em baixo destacadas em azul, escritas no html do bootstrap:
col-sm-
col-md-
col-lg-
col-xl-
- col – column
- md – medium
- lg – large
- xl – extra large
Para detalhes acesse a documentação:
https://getbootstrap.com.br/docs/4.1/layout/grid/
Vamos começar deletando a div Home que não iremos usar.
Em seguida, vamos fazer uma pequena alteração no search.
É o que tá em laranja no código abaixo.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-2 order-12">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Terceiro item
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse:
http://127.0.0.1:8000/bootstrap/
Veja que agora, o search ocupa toda a largura da tela quando você muda o tamanho da tela do browser, faça o teste.
É aí que o breakpoint entra em ação.
Vamos adicionar os breakpoints.
Adicione ao search col-sm-2.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-2 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-2 order-12">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Terceiro item
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse:
http://127.0.0.1:8000/bootstrap/
Faça o seguinte teste, mude a largura da tela do browser com o mouse.
Veja que a search agora ocupa toda a largura da tela quando a largura do browser tá em determinado limite de largura.
Quando ultrapassamos esse limite, significa que atingiu o breakpoint, aí o search fica menor, fica com tamanho 2 de 12, que é a largura total da tela do browser para o bootstrap.
Essa configuração de breakpoint não ficou legal, vamos mudar isso.
Vamos trocar o col-sm-2 para col-sm-12 e colocar o col-md-6
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-2 order-12">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Terceiro item
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse e teste novamente:
http://127.0.0.1:8000/bootstrap/
Agora começou a ficar um pouco melhor. 😉
Mas, note que quando você aumenta a largura da tela do browser, o search tá ficando muito grande ainda.
Vamos tentar melhorar isso então?
Coloque no search: col-lg-4
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-2 order-12">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Terceiro item
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse:
http://127.0.0.1:8000/bootstrap/
Faça o teste de novo.
Agora sim, vamos deixar a search desse jeito por enquanto.
Divs Primeiro item, Segundo item e Terceiro item
Agora vamos mexer nas divs que tem: Primeiro item, Segundo item e Terceiro item.
A div Terceiro item vai virar a div Conteúdo da parte inferior.
Tire o estilo style=’min-height: 800px; dela, não queremos mais essa altura.
Vamos fazer o mesmo com o Primeiro item também.
Ou seja, remova o style=’min-height: 800px; do Primeiro item e do Terceiro item.
Então, o html vai ficar assim.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert"'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-2 order-12">
<div class="alert alert-primary" role="alert"'>
Conteúdo da parte inferior
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse e teste:
http://127.0.0.1:8000/bootstrap/
Para fazer a div do Conteúdo da parte inferior ficar na posição que queremos, mude o col-2 para col-12.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-2 order-1">
<div class="alert alert-primary" role="alert"'>
Primeiro item
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-12 order-12">
<div class="alert alert-primary" role="alert"'>
Conteúdo da parte inferior
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse:
http://127.0.0.1:8000/bootstrap/
Porque aconteceu esse efeito?
Primeiro por causa do col-12 e também porque o primeiro item tá com col-2, o segundo com col-8, e 8 + 2 = 10.
Como o terceiro item, agora chamado de Conteúdo da parte inferior, tá com col-12, ele não vai caber na primeira linha, por isso, cai para segunda, mesmo sem criar uma nova row. 🤔
Seguindo
Vamos agora chamar o Primeiro item de Conteúdo superior, e colocar ele no topo da página com:
col-12 col-lg-2
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-lg-2 order-1">
<div class="alert alert-primary" role="alert"'>
Conteúdo superior
</div>
</div>
<div class="col-8 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Segundo item
</div>
</div>
<div class="col-12 col-lg-2 order-12">
<div class="alert alert-primary" role="alert"'>
Conteúdo da parte inferior
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse:
http://127.0.0.1:8000/bootstrap/
Área do conteúdo principal
Vamos transformar o Segundo item na Área do conteúdo principal.
Coloque col-11 e ponha um margin left automático com ml-auto e um margin right automático com mr-auto.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-lg-2 order-1">
<div class="alert alert-primary" role="alert"'>
Conteúdo superior
</div>
</div>
<div class="col-11 ml-auto mr-auto order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Área do conteúdo principal
</div>
</div>
<div class="col-12 order-12">
<div class="alert alert-primary" role="alert"'>
Conteúdo da parte inferior
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Acesse e teste:
http://127.0.0.1:8000/bootstrap/
Vamos agora copiar duas rows e colar dentro da Área do conteúdo principal.
Na primeira coluna a gente vai colocar col-auto e na segunda col-6.
O col-auto se ajusta ao tamanho do texto, mude o texto: A simple primary alert—check it out!
Para um texto menor qualquer e veja o resultado, perceba que ele se ajusta ao novo texto.
/templates/bootstrap/example.html
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Bootstrap example</title>
</head>
<body>
<div class='container'>
<div class="row">
<div class="col-12">
<div class="alert alert-secondary" role="alert">
Navbar
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-lg-4 ml-auto">
<div class="alert alert-primary" role="alert">
<input type="text" class="form-control" placeholder="search">
</div>
</div>
</div>
<div class="row">
<div class="col-12 col-lg-2 order-1">
<div class="alert alert-primary" role="alert"'>
Conteúdo superior
</div>
</div>
<div class="col-10 order-6">
<div class="alert alert-primary" role="alert" style='min-height: 800px;'>
Área do conteúdo principal
<div class="row">
<div class="col-auto">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-6">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
</div>
<div class="col-12 order-12">
<div class="alert alert-primary" role="alert"'>
Conteúdo da parte inferior
</div>
</div>
</div>
</div>
<div class='container'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<div class='container-fluid'>
<div class="row">
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-primary" role="alert">
A simple primary alert—check it out!
</div>
</div>
<div class="col-1">
<div class="alert alert-secondary" role="alert">
A simple secondary alert—check it out!
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>
Veja o resultado:
http://127.0.0.1:8000/bootstrap/
É isso pessoal, por hora ficamos por aqui!
Aula 28 Aula 30
Todas as aulas desse curso
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Para baixar o código como está até agora, acesse o link abaixo:
https://github.com/toticavalcanti/django_ecommerce/tree/breakpoints
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Obrigado, até a próxima e bons estudos. 😉
