CSS样式-精灵图(雪碧图)

只请求一次图片加载,然后通过控制图片的background-position来获得想要的样式效果。
 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style type="text/css">
        #nav {
            text-align: center;
        }
        #nav>a { 
            display: inline-block;
            width: 120px;
            height: 50px;
            background-image: url(image/bgall.png);
            line-height: 50px;
            color: #fff;
            text-decoration: none;
            background-position: left top;

 

        }
        #nav>a:hover {
            background-position: left -50px;
        }
    </style>
</head>
<body>
    <div id="nav">
        <a href="#">测试菜单</a>
        <a href="#">测试菜单</a>
        <a href="#">测试菜单</a>
        <a href="#">测试菜单</a>
        <a href="#">测试菜单</a>
        <a href="#">测试菜单</a>
    </div>
</body>
</html>
posted @ 2021-02-21 17:21  #Friday  阅读(148)  评论(0)    收藏  举报