小库编程教程示范演示-小库网

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小库网
<style>
body {margin:0;}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
    position: fixed;
    top: 0;
    width: 100%;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

li a:hover:not(.active) {
    background-color: #111;
}

.active {
    background-color: #4CAF50;
}
</style>

<ul>
  <li><a class="active" href="#home">主页</a></li>
  <li><a href="#news">新闻</a></li>
  <li><a href="#contact">联系</a></li>
  <li><a href="#about">关于</a></li>
</ul>

<div style="padding:20px;margin-top:30px;background-color:#1abc9c;height:1500px;">
<h1>Fixed Top Navigation Bar</h1>
<h2>Scroll this page to see the effect</h2>
<h2>The navigation bar will stay at the top of the page while scrolling</h2>

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</div>