Bootstrap 4 - Boutons
La description
Bootstrap fournit un bouton cliquable pour mettre du contenu tel que du texte et des images. Vous pouvez inclure le texte au bouton à l'aide de la balise <input>.
Vous pouvez créer un bouton en utilisant la classe .btn suivie du style souhaité (par exemple, btn-success). Bootstrap fournit quelques options pour les boutons de style, qui sont listées ci-dessous
btn-primary
btn-secondary
btn-success
btn-danger
btn-warning
btn-info
btn-light
btn-dark
btn-link
L'exemple suivant montre toutes les classes de boutons ci-dessus -
Exemple
<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://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class="container">
<h2>Button Styles</h2>
<button type = "button" class = "btn btn-primary">Primary Button</button>
<button type = "button" class = "btn btn-secondary">Secondary Button</button>
<button type = "button" class = "btn btn-success">Success Button</button>
<button type = "button" class = "btn btn-danger">Danger Button</button>
<button type = "button" class = "btn btn-warning">Warning Button</button>
<button type = "button" class = "btn btn-info">Info Button</button>
<button type = "button" class = "btn btn-light">Light Button</button><br><br>
<button type = "button" class = "btn btn-dark">Dark Button</button>
<button type = "button" class = "btn btn-link">Link Button</button>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -
Production
Boutons de contour
Bootstrap 4 fournit une couleur sémantique au contour d'un bouton en utilisant la classe .btn-outline suivie du style souhaité (par exemple, btn-outline-success).
L'exemple suivant montre l'affichage des boutons entourés -
Exemple
<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://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Button Outlines</h2>
<button type = "button" class = "btn btn-outline-primary">Primary Button</button>
<button type = "button" class = "btn btn-outline-secondary">Secondary Button</button>
<button type = "button" class = "btn btn-outline-success">Success Button</button>
<button type = "button" class = "btn btn-outline-danger">Danger Button</button>
<button type = "button" class = "btn btn-outline-light">Light Button</button>
<button type = "button" class = "btn btn-outline-warning">Warning Button</button>
<button type = "button" class = "btn btn-outline-info">Info Button</button>
<button type = "button" class = "btn btn-outline-dark">Dark Button</button>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -
Production
Tailles des boutons et boutons de niveau de bloc
Bootstrap 4 fournit des boutons de plus en plus grands en utilisant les classes .btn-sm et .btn-lg et la classe .btn-block crée un bouton de niveau de bloc qui couvre toute la largeur d'un parent, comme indiqué dans l'exemple ci-dessous -
Exemple
<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://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Button Sizes</h2>
<button type = "button" class = "btn btn-info btn-sm">Small button</button>
<button type = "button" class = "btn btn-info">Default button</button>
<button type = "button" class = "btn btn-info btn-lg">Large button</button>
</br>
</br>
<h2>Block Level Button</h2>
<button type = "button" class = "btn btn-info btn-lg btn-block">
Block Level Info Button
</button>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -
Production
État actif et désactivé
Bootstrap vous permet de modifier l'état des boutons comme étant actifs et désactivés . Les boutons apparaîtront enfoncés lorsqu'il est à l'état actif et le bouton perdra le dégradé et se fanera en couleur de 50%, puis nous disons qu'il est à l'état désactivé.
Utilisez la classe .active pour afficher le bouton activé et ajoutez l' attribut désactivé pour rendre le bouton inactif. L'exemple suivant montre les états du bouton -
Exemple
<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://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Active State</h2>
<button type = "button" class = "btn btn-lg btn-primary" >
Active button
</button>
<br>
<br>
<h2>Disabled State</h2>
<button type = "button" class = "btn btn-primary btn-lg" disabled>
Disabled Button
</button>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -
Production
Activer / désactiver les cases à cocher et les boutons radio
Bootstrap 4 permet d'appliquer des styles de boutons aux boutons radio et aux cases à cocher pour utiliser la fonction de basculement. Vous pouvez activer le basculement des cases à cocher et des boutons radio dans un élément <label>, en ajoutant data-toggle = " Buttons " à l' intérieur de l' élément .btn-group .
L'exemple suivant illustre le basculement des cases à cocher et des boutons radio -
Exemple
<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://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Checkbox</h2>
<div class = "btn-group btn-group-toggle" data-toggle = "buttons">
<label class = "btn btn-info active">
<input type = "checkbox" name = "options" id = "option1" autocomplete = "off" checked>
HTML-5
</label>
<label class = "btn btn-info">
<input type = "checkbox" name = "options" id = "option2" autocomplete = "off">
CSS-3
</label>
<label class = "btn btn-info">
<input type = "checkbox" name = "options" id = "option3" autocomplete = "off">
Bootstrap-4
</label>
</div>
<br>
<br>
<h2>Radio Buttons</h2>
<div class = "btn-group btn-group-toggle" data-toggle = "buttons">
<label class = "btn btn-primary active">
<input type = "radio" name = "options" id = "option1" autocomplete = "off" checked>
HTML-5
</label>
<label class = "btn btn-primary">
<input type = "radio" name = "options" id = "option2" autocomplete = "off">
CSS-3
</label>
<label class = "btn btn-primary">
<input type = "radio" name = "options" id = "option3" autocomplete = "off">
Bootstrap-4
</label>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Il produira le résultat suivant -