Home > Article > Web Front-end > How to write a secondary drop-down menu in css

How to write a secondary drop-down menu in css

藏色散人Original: 2021-01-04 09:27:203984browse

How to write a secondary drop-down menu in css: first create an HTML sample file; then use the display attribute of css to control whether the secondary drop-down menu is displayed or not; and finally check the running effect through the browser.

The operating environment of this tutorial: Dell G3 computer, Windows7 system, Chrome76.0&&CSS3 version.

Recommendation: "css video tutorial"

Pure CSS to implement secondary navigation drop-down menu

Thought:

Use the display attribute of css to control whether the secondary drop-down menu is displayed or not. When the mouse moves to the li tag of the first-level navigation menu, the ul tag of the second-level navigation menu is displayed. Since the implementation is relatively simple, the reference code is given directly here.

Pure CSS secondary navigation drop-down menu code

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8" content="text/html" http-equiv="content-type">
    <title>纯css二级导航下拉菜单</title>
    <meta name="keyword" content="关键字">
    <meta name="description" content="描述">
    <style type="text/css">
        *{margin: 0;padding: 0;}
        #bg{background: red;width: 100%;height: 35px;}
        nav{height: 35px;width: 1000px;margin: 0 auto;}
        nav ul li{list-style-type:none;float: left}
        nav ul li a{ text-decoration: none;display: block;width: 130px;line-height: 35px;
        text-align: center;color:white;font-fimily:微软雅黑;}
        nav ul li ul li{float: none}
        nav ul li ul li a{color:black}
        nav ul li ul{display: none;}
        nav ul li:hover ul{display: block;}
    </style>
</head>
<body>
<div id="bg">
<nav>
    <ul>
        <li><a href="#">一级导航</a>
        <ul>
            <li><a href="#">二级导航</a></li>
            <li><a href="#">二级导航</a></li>
            <li><a href="#">二级导航</a></li>
            <li><a href="#">二级导航</a></li>
        </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
        <li><a href="#">一级导航</a>
            <ul>
                <li><a href="#">二级导航</a></li>
                <li><a href="#">二级导航</a></li>
            </ul>
        </li>
    </ul>
</nav>
</div>
</body>
</html>

Running effect:

How to write a secondary drop-down menu in css

The above is the detailed content of How to write a secondary drop-down menu in css. For more information, please follow other related articles on the PHP Chinese website!

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Introduction to common properties of css grid layout (grid)Next article：Introduction to common properties of css grid layout (grid)

See more

How to write a secondary drop-down menu in css

Related articles