通过添加 .btn-block 类可以设置块级按钮:
实例:
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap4 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
</head>
<body>
<div class="container">
<h2>块级按钮</h2>
<button type="button" class="btn btn-primary btn-block">按钮 1</button>
<button type="button" class="btn btn-default btn-block">按钮 2</button>
<h2>大的块级按钮</h2>
<button type="button" class="btn btn-primary btn-lg btn-block">按钮 1</button>
<button type="button" class="btn btn-default btn-lg btn-block">按钮 2</button>
<h2>小的块级按钮</h2>
<button type="button" class="btn btn-primary btn-sm btn-block">按钮 1</button>
<button type="button" class="btn btn-default btn-sm btn-block">按钮 2</button>
</div>
</body>
</html>
尝试一下 |