具有bg-secondary类的Bootstrap 4卡
通过在Bootstrap中使用card类和bg-secondary上下文类添加不太重要的内容。
此类添加灰色背景-
<div class="card bg-secondary text-white">
在里面，添加卡体-
<div class="card bg-secondary text-white"> <div class="card-body">English</div> </div>
您可以尝试运行以下代码以在Bootstrap中使用bg-secondary类实现card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://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h3>Languages</h3>
<div class="card bg-secondary text-white">
<div class="card-body">English</div>
</div><br>
<div class="card bg-secondary text-white">
<div class="card-body">French</div>
</div><br>
<div class="card bg-secondary text-white">
<div class="card-body">Chinese</div>
</div><br>
<div class="card bg-secondary text-white">
<div class="card-body">Russian</div>
</div>
</div>
</body>
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