1 .bg{
2 100%;
3 height:100%;
4 background-image: url(../image/splash.png);
5 background-size: 100% 100%;
6 background-size: cover;
7 position: fixed; ----重点
8 display: block;
9 }
<style type="text/css"> *{ margin:0; padding: 0; } body { 100%; height: 100%; overflow: scroll; } img { 100%; } </style> <body> <img src="huodongye.png" /> </body>