<!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-sidebar w3-bar-block w3-black w3-card" style="width:130px">
<h5 class="w3-bar-item">菜单</h5>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Fade')">淡入</button>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Left')">从左侧滑入</button>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Right')">从右侧滑入</button>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Top')">从顶部滑入</button>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Bottom')">从底部滑入</button>
<button class="w3-bar-item w3-button tablink" onclick="openLink(event, 'Zoom')">放大</button>
</div>
<div style="margin-left:130px">
<div class="w3-padding">使用w3-animate类来淡入,缩放或滑动选项卡内容。</div>
<div id="Fade" class="w3-container city w3-animate-opacity" style="display:none">
<h2>淡入</h2>
<p>伦敦是英格兰的首都。</p>
<p>它是英国人口最多的城市,人口超过1300万。</p>
</div>
<div id="Left" class="w3-container city w3-animate-left" style="display:none">
<h2>从左侧滑入</h2>
<p>巴黎是法国的首都。</p>
<p>巴黎地区是欧洲最大的人口中心之一,人口超过1200万。</p>
</div>
<div id="Top" class="w3-container city w3-animate-top" style="display:none">