• 三级下拉菜单小示例


    <!DOCTYPE html>
    <html lang="en">
    <head>
    <meta charset="UTF-8">
    <title>Document</title>
    <link rel="stylesheet" href="css.css">
    </head>
    <body>

    <nav>
    <ul>
    <li><a href="#">Home</a></li>
    <li><a href="#">Tutorials</a>
    <ul>
    <li><a href="#">Photoshop</a></li>
    <li><a href="#">Illustrator</a></li>
    <li><a href="#">Web Design</a>
    <ul>
    <li><a href="#">HTML</a></li>
    <li><a href="#"> CSS</a></li>
    </ul>
    </li>
    </ul>
    </li>
    <li><a href="#">Articles</a>
    <ul>
    <li><a href="#">Web Design</a></li>
    <li><a href="#">User Experience</a></li>
    </ul>
    </li>
    <li><a href="#">Inspiration</a></li>
    </ul>
    </nav>
    </body>
    </html>

    /*nav {
    margin: 100px auto;
    text-align: center;
    }*/

    nav ul ul {
    display: none;
    }

    nav ul li:hover > ul {
    display: block;
    }


    nav ul {
    background: #efefef;
    /*background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);
    background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%);
    background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%); */
    box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
    padding: 0 20px;
    border-radius: 10px;
    list-style: none;
    position: relative;
    display: inline-table;
    }
    /*nav ul:after {
    content: ""; clear: both; display: block;
    }*/

    nav ul li {
    float: left;
    }
    nav ul li:hover {
    background: #4b545f;
    background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
    background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
    background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
    }
    nav ul li:hover a {
    color: #fff;
    }

    nav ul li a {
    display: block; padding: 25px 40px;
    color: #757575; text-decoration: none;
    }


    nav ul ul {
    background: #5f6975; border-radius: 0px; padding: 0;
    position: absolute; top: 100%;
    }
    nav ul ul li {
    float: none;
    border-top: 1px solid #6b727c;
    border-bottom: 1px solid #575f6a; position: relative;
    }
    nav ul ul li a {
    padding: 15px 40px;
    color: #fff;
    }
    nav ul ul li a:hover {
    background: #4b545f;
    }

    nav ul ul ul {
    position: absolute; left: 100%; top:0;

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  • 原文地址:https://www.cnblogs.com/jinjinjin/p/5675349.html
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