body{background:#fff url(http://image.kuwo.cn/rw/mt/14/ktop.jpg) no-repeat center top;}
div#mlogBody{position:static; margin:230px auto 0; text-align:left;}
.toptit{top:0; position:absolute; padding-top:30px; width:850px; left:50%; margin-left:-500px; text-align:left;  background-image:none; }
.toptit span{color:#434343;}
.topintro{top:60px; left:0; text-align:left;}