<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<!-- figure -->
<figure>
<figcaption>我是图片</figcaption>
<img src="../音视频/ad7.jpeg" alt="">
</figure>
<details>
<!-- <summary>一线城市</summary> -->
<div>北京</div>
<div>上海</div>
<div>深圳</div>
</details>
<mark>高亮效果</mark>
<u>下划线</u>
</body>
</html>
