Bootstrap 4 .border-white 类
如需为某个元素设置白色边框,请使用 border-white 类。
添加白色边框 −
<div class="mystyle border border-white"> This has white border </div>
上面,我也添加了一个样式来设置 div 元素 −
.mystyle { width: 200px; height: 100px; margin: 10px; background: blue; }
让我们看一个示例以在 Bootstrap 中实现 border-white 类 −
示例
<!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 rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> <style> .mystyle { width: 200px; height: 100px; margin: 10px; background: blue; } </style> </head> <body> <div class="container"> <p>The following are two Rectangles:</p> <div class="mystyle border border-white">This has white border</div> <div class="mystyle border border-success">This has orange border</div> </div> </body> </html>
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