The specific implementation steps are as follows:
(Video tutorial recommendation: css video tutorial)
1. Use ul and li Write an association structure for the label (the parent-child relationship between ul and li is natural, and they are used in general association structures)
<ul class="nav"> <a href="#">服装</a> <ul class="plat"> <li><a href="#">衬衫</a></li> <li><a href="#">棉袄</a></li> <li><a href="#">裤衩</a></li> </ul> </ul>
2. Initialize the interface
*{ padding: 0; margin: 0; }
3. Label ul and a Add style
ul,a{ font-size: 20px; list-style: none; text-decoration: none; background-color: #3C3C3C; color: #FFFFFF; width: 100px; text-align: center; border: 0px solid black; border-radius: 5px; /*圆角*/ margin-top: 1px; } a{ display: block; }
4. Hide the content of the .plat part
.plat{ display: none; }
5. Use:hover selector for the first a tag; realize the function: when the mouse passes over the a tag , hiding part of the content is visible
.nav:hover .plat{ display: block; clear: both; }
6. So far, the function has been implemented. You can add your own styles to optimize the user experience
For example:
Menu bar arranged horizontally:
.nav{ float: left; margin-left: 1px; }
The mouse slides over the column to remind its position
`.plat li:hover>a{ background-color: dimgrey; }`
Result:
All codes are as follows:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <style> *{ padding: 0; margin: 0; } ul,a{ font-size: 20px; list-style: none; text-decoration: none; background-color: #3C3C3C; color: #FFFFFF; width: 100px; text-align: center; border: 0px solid black; border-radius: 5px; margin-top: 1px; } a{ display: block; } .plat{ display: none; } .nav{ float: left; margin-left: 1px; } .nav:hover .plat{ display: block; clear: both; } .plat li:hover>a{ background-color: dimgrey; } </style> </head> <body> <ul> <a href="#">服装</a> <ul> <li><a href="#">衬衫</a></li> <li><a href="#">棉袄</a></li> <li><a href="#">裤衩</a></li> </ul> </ul> <ul> <a href="#">服装</a> <ul> <li><a href="#">衬衫</a></li> <li><a href="#">棉袄</a></li> <li><a href="#">裤衩</a></li> </ul> </ul> <ul> <a href="#">服装</a> <ul> <li><a href="#">衬衫</a></li> <li><a href="#">棉袄</a></li> <li><a href="#">裤衩</a></li> </ul> </ul> </body> </html>
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