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>
<div class="w3-container">
<h2>W3.CSS</h2>
<p></p>
<button onclick="document.getElementById('id01').style.display='block'" class="w3-button w3-black"></button>
<div id="id01" class="w3-modal">
<div class="w3-modal-content w3-card-4">
<header class="w3-container w3-teal">
<span onclick="document.getElementById('id01').style.display='none'"
class="w3-button w3-display-topright">&times;</span>
<h2></h2>
</header>
<div class="w3-container">
<p></p>
<p>“ x”</p>
</div>
<footer class="w3-container w3-teal">
<p></p>
</footer>
</div>
</div>
</div>
<script>
//
var modal = document.getElementById('id01');
 
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运行结果