看起来如下
代码如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>A page that uses dark mode</title>
<style>
body{
background:#191b22;
}
.card{
width:40em;
color:#fff;
background:#313543;
}
.card-header{
padding-top:.6em;
padding-left:1em;
height:2.1em;
}
.card-body{
padding:.4em 1em .7em;
background:#282C37;
}
.card-footer{
padding-top:.6em;
padding-left:1em;
height:2.1em;
}
</style>
</head>
<body>
<div class="card">
<div class="card-header">卡片标题</div>
<div class="card-body">卡片内容</div>
<div class="card-footer">卡片底部</div>
</div>
</body>
</html>