html, body {
height:100%;
margin:0;
padding:0;
}
body {
position:relative;
background:#E5E7E6;
font-family:"宋体";
font-size:12px;
}

#banner {
position:absolute;
top:50%;
left:50%;
height:620px;
width:1000px;
margin:-310px 0 0 -500px;
}
#entrance{
    height:20px;
    line-height:20px;
    background:#999B8A;
    text-align:center;
    padding:0 20px;}
    #entrance a{
        color:#494949;
        text-decoration:none;}
         #entrance a:hover{
             color:#F01E1F;}
#banner2 {
position:absolute;
top:50%;
left:50%;
height:693px;
width:1002px;
margin:-346px 0 0 -501px;
}

/*浮动清除
---------------------------------*/
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
.clearfix {
display: inline-block;
}
/* Hides from IE-mac \*/
* html .clearfix {
height: 1%;
}
.clearfix {
display: block;
}
/* End hide from IE-mac */