.Zbg {
    background: #f4f4f4 url(Imageszhi.jpg) center top repeat-y;
    overflow: hidden;
}
.ZSort{ width:498px; height:727px; overflow-x:hidden; overflow-y:scroll; margin:40px auto;}
.ZSort a{ width:160px; height:50px; display:block; margin:0px auto; line-height:50px; color:#0e9cde; font-size:16px; padding-left:45px; background:url(../Images/ZSortLi.jpg) left center no-repeat;}