App下载
实例代码( Tip: 登录后体验更佳 )
<!DOCTYPE html>
<html>
<head>
<title>W3.CSS(w3cschool.cn)</title>
<meta name="viewport" content="width=device-width, initial-scale=1" charset="UTF-8">
<link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
</head>
<body>
<div class="w3-container">
<h2></h2>
<p></p>
</div>
<div class="w3-row-padding">
<div class="w3-col s3 w3-container">
<a href="javascript:void(0)" class="w3-hover-opacity" onclick="openImg('Nature');">
<img src="https://atts.w3cschool.cn/img_nature.jpg" alt="Nature" style="width:100%">
</a>
</div>
<div class="w3-col s3 w3-container">
<a href="javascript:void(0)" class="w3-hover-opacity" onclick="openImg('Snow');">
<img src="https://atts.w3cschool.cn/img_snowtops.jpg" alt="Snow" style="width:100%">
</a>
</div>
<div class="w3-col s3 w3-container">
<a href="javascript:void(0)" class="w3-hover-opacity" onclick="openImg('Mountains');">
<img src="https://atts.w3cschool.cn/img_mountains.jpg" alt="Mountains" style="width:100%">
</a>
</div>
<div class="w3-col s3 w3-container">
<a href="javascript:void(0)" class="w3-hover-opacity" onclick="openImg('Lights');">
<img src="https://atts.w3cschool.cn/img_lights.jpg" alt="Lights" style="width:100%">
</a>
</div>
 
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运行结果