Bootstrap 4 .border-white 类
bootstrapweb developmentcss framework更新于 2024/1/14 17:48:17
要为元素设置白色边框，请使用 border-white 类。
添加白色边框 −
<div class="mystyle border border-white"> 此处有白色边框 </div>
上面，我还添加了一个样式来设置 div 元素 −
.mystyle {
width: 200px;
height: 100px;
margin: 10px;
background: blue;
让我们看一个在 Bootstrap 中实现 border-white 类的示例 −
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>
