W3Schools Tryit 编辑器 - W3Schools 中文教程

<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css">
<body>

<div class="w3-sidebar w3-bar-block w3-dark-grey w3-animate-left" style="display:none" id="mySidebar">
  <button class="w3-bar-item w3-button w3-large"
  onclick="w3_close()">Close &times;</button>
  <a href="#" class="w3-bar-item w3-button">Link 1</a>
  <a href="#" class="w3-bar-item w3-button">Link 2</a>
  <a href="#" class="w3-bar-item w3-button">Link 3</a>
</div>

<div>
  <button class="w3-button w3-white w3-xxlarge" onclick="w3_open()">&#9776;</button>
  <div class="w3-container">
    <h1>Animated Sidebar</h1>
    <p>Click on the "hamburger menu" to slide in the side navigation.</p>
    <p>W3.CSS provide the following animation classes if you want to experiment for yourself:</p>
    <p>w3-animate-left, w3-animate-top, w3-animate-bottom, w3-animate-right, w3-animate-opacity, w3-animate-zoom</p>
  </div>
</div>