Os recolhíveis são úteis quando você deseja ocultar e mostrar uma grande quantidade de conteúdo:
<button data-bs-toggle="collapse" data-bs-target="#demo">Collapsible</button>
<div id="demo" class="collapse">
Lorem ipsum dolor text....
</div>Experimente você mesmo →
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Simple Collapsible</h2>
<p>Click on the button to toggle between showing and hiding content.</p>
<button type="button" class="btn btn-primary" data-bs-toggle="collapse" data-bs-target="#demo">Simple collapsible</button>
<div id="demo" class="collapse">
Lorem ipsum dolor sit amet, consectetur adipisicing elit,
sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</body>
</html>
A classe .collapse indica um elemento recolhível (um <div> em nosso exemplo); este é o conteúdo que será mostrado ou ocultado com o clique de um botão.
Para controlar (mostrar/ocultar) o conteúdo recolhível, adicione o atributo data-bs-toggle="collapse" a um elemento <a> ou <button>. Em seguida, adicione o atributo data-bs-target="#id" para conectar o botão ao conteúdo recolhível (<div id="demo">).
Observação: para elementos <a>, você pode usar o atributo href em vez do atributo data- Atributo bs-target:
<a href="#demo" data-bs-toggle="collapse">Collapsible</a>
<div id="demo" class="collapse">
Lorem ipsum dolor text....
</div>Experimente você mesmo →
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Simple Collapsible</h2>
<a href="#demo" class="btn btn-primary" data-bs-toggle="collapse">Simple collapsible</a>
<div id="demo" class="collapse">
Lorem ipsum dolor sit amet, consectetur adipisicing elit,
sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</body>
</html>
Por padrão, o conteúdo recolhível fica oculto. No entanto, você pode adicionar a classe .show para mostrar o conteúdo por padrão:
<div id="demo" class="collapse show">
Lorem ipsum dolor text....
</div>Experimente você mesmo →
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Show Collapsible Content By Default</h2>
<p>Add the show class next to the collapse class to show the content by default.</p>
<p>Click on the button to toggle between showing and hiding content.</p>
<button type="button" class="btn btn-primary" data-bs-toggle="collapse" data-bs-target="#demo">Simple collapsible</button>
<div id="demo" class="collapse show">
Lorem ipsum dolor sit amet, consectetur adipisicing elit,
sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</body>
</html>
O exemplo a seguir mostra um acordeão simples estendendo o componente cartão.
Observação: Use o atributo data-bs-parent para garantir que todos os elementos recolhíveis sob o pai especificado serão fechados quando um dos elementos recolhíveis item é mostrado.
<div id="accordion">
<div class="card">
<div class="card-header">
<a class="btn" data-bs-toggle="collapse" href="#collapseOne">
Collapsible Group Item #1
</a>
</div>
<div id="collapseOne" class="collapse show" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum..
</div>
</div>
</div>
<div class="card">
<div class="card-header">
<a class="collapsed btn" data-bs-toggle="collapse" href="#collapseTwo">
Collapsible Group Item #2
</a>
</div>
<div id="collapseTwo" class="collapse" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum..
</div>
</div>
</div>
<div class="card">
<div class="card-header">
<a class="collapsed btn" data-bs-toggle="collapse" href="#collapseThree">
Collapsible Group Item #3
</a>
</div>
<div id="collapseThree" class="collapse" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum..
</div>
</div>
</div>
</div>Experimente você mesmo →
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Accordion Example</h2>
<p><strong>Note:</strong> The <strong>data-bs-parent</strong> attribute makes sure that all collapsible elements under the specified parent will be closed when one of the collapsible item is shown.</p>
<div id="accordion">
<div class="card">
<div class="card-header">
<a class="btn" data-bs-toggle="collapse" href="#collapseOne">
Collapsible Group Item #1
</a>
</div>
<div id="collapseOne" class="collapse show" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</div>
<div class="card">
<div class="card-header">
<a class="collapsed btn" data-bs-toggle="collapse" href="#collapseTwo">
Collapsible Group Item #2
</a>
</div>
<div id="collapseTwo" class="collapse" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</div>
<div class="card">
<div class="card-header">
<a class="collapsed btn" data-bs-toggle="collapse" href="#collapseThree">
Collapsible Group Item #3
</a>
</div>
<div id="collapseThree" class="collapse" data-bs-parent="#accordion">
<div class="card-body">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
</div>
</div>
</div>
</div>
</div>
</body>
</html>