一些css技巧

/*兼容IE6的max-width和max-height*/
.nav-sub .box-cmt .naviLi li a img{transform:scale(1,1);vertical-align:middle;max-width:125px;max-height:160px;_width:expression(document.body.clientWidth > 125 ? "125px" :"auto");_height:expression(this.scrollHeight > 160 ? "160px" :"auto");}

/*图片自动垂直居中*/
.sense #mid_con .right_box .today_face{width:298px;height:256px;text-align:center;font-size:0;border:#d7d7d7 1px solid;overflow:hidden}
.sense #mid_con .right_box .today_face .hook{display:inline-block;width:0;height:100%;overflow:hidden;margin-left:-1px;font-size:0;line-height:0;vertical-align:middle;}
.sense #mid_con .right_box .today_face img {vertical-align:middle;border:0 none;}