.margin0auto{margin: 0 auto;}
.logo{margin: 15px auto 30px;}
.menu{}
.menu ul{margin:0 auto;width: 520px;overflow: hidden;}
.head_search{width: 520px;float: none;margin: 50px auto 30px;background: url('skin/default/image/head_search_list.png') no-repeat;}
.head_search:hover{background:url('skin/default/image/head_search_list.png') no-repeat 0 -32px;}
.search_i{width: 424px;}
.list-box{margin-bottom: 30px;}