#mall_header .nav li a {  color: #333;  display: block; text-decoration:none; }
#mall_header .top_mainlogo { float: left; }
#mall_header .top_mainlogo div { display:table-cell; vertical-align:middle; height: 80px; width:20px;} 
#mall_header .top_mainlogo img { vertical-align:middle;}
.header_main ul { margin:0;}