.case-main{ padding:0px 5px;}
.case-main li{ width:220px; float:left; padding:30px 10px 0px 10px;}
.case-main li a{ background:#bebebe; float:left;}
.case-main li a:hover{ background:#ddbc00;border:4px solid #ddbc00; margin:-4px;}
.case-main li a p{ width:220px; text-align:center;}
.case-bt{ margin:0 auto; padding:20px 0px; width:442px;}
.case-bt em{ background:#000; height:23px; line-height:23px; color:#FFF; float:left; margin:0px 5px; padding:0px 10px;}
.case-bt a{ text-align:center; float: left; float:left; padding:0px 5px; margin:0px 5px; color:#FFF; line-height:23px;} 
.case-bt a:hover{ color:#fad400;}
.case-bt .acolor{ text-align:center; background:#fad400; color:#000;}