为什么我的top_content 盒子就是不起作用？改为1000px 或者500px 都不起作用
@charset"utf-8";
/*CSS Document*/
*{
margin:0;
padding:0;
font-size:12px;
}
body{
background-color:#f5f5f5;
}
.top{
width:100%;
height:27px;
background:url(../images/top_bg.jpg) repeat-x;
}
.top_content {
width: 1000px;
margin: 0 auto;
line-height: 27px;
}
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <link href="css/main.css" rel="stylesheet" type="text/css" /> </head> <body> <div class="top"> <div class="top_content"> <ul> <li>联系我们</li> <li>加入收藏</li> <li>设为首页</li> </ul> </div> </div> <!--top结束--> </body> </html>
