div设置宽度无效_html/css_WEB-ITnose

css html

css文件

body{
margin:0;
padding:0;
font-size:16px;
background-image:url(/CMS/view/image/background.jpg);
z-index:0;
}
#body{
margin:auto;
width:100%;
height:auto;
}
.nav{
width:100%;
height:30px;
background-color:DAECFE;
position:fixed;
top:0;
z-index:100;
}

#centent{
margin-top:34px;
margin-left:auto;
margin-right:auto;
width:1024px;

border:solid #C9C9C9;
height:600px;
}
#footer{
margin-top:5px;
margin-left:auto;
margin-right:auto;
width:1024px;
height:60px;
border:solid #C9C9C9;
}

html文件













footer