Bootstrap 4 - Ombres et espacement
La description
L'utilitaire d'ombre ajoute de l'ombre aux éléments et l'utilitaire d'espacement fournit des valeurs de marge ou de remplissage à un élément.
Exemple
Vous pouvez ajouter une ombre à l'élément en ajoutant la classe .shadow dans l'élément <div>. Nous avons utilisé la classe .mx-auto pour placer le contenu au centre.
L'exemple suivant illustre les utilitaires d'ombre et d'espacement -
<html lang = "en">
<head>
<!-- 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://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Shadow</h2>
<div class = "shadow-none p-3 mb-5 bg-light rounded">
No shadow : using class 'shadow-none'
</div>
<div class = "shadow-sm p-3 mb-5 bg-white rounded">
Small shadow : using class 'shadow-sm'
</div>
<div class = "shadow p-3 mb-5 bg-white rounded">
Regular shadow : using class 'shadow'
</div>
<div class = "shadow-lg p-3 mb-5 bg-white rounded">
Larger shadow : using class 'shadow-lg'
</div>
<h2>Spacing</h2>
<div class = "bg-dark">
<div class = "mx-auto text-white" style = "width: 200px;">
Content is in center
</div>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity = "sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin = "anonymous">
</script>
<!-- Popper -->
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
integrity = "sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin = "anonymous">
</script>
<!-- Latest compiled and minified Bootstrap JavaScript -->
<script src =" https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity = "sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -