#parters{list-style:none;}
#parters li{width:200px; height:100px; float:left; text-align:center; vertical-align:middle;}

.content-box{width:252px; float:left; border:1px solid #eee; margin:3px;}
.content-box h3{padding:4px; margin:0;}
.content-box-item{float:left; padding:1px; border:1px solid #fff;}
.content-box-item:hover{border:1px solid #33CC99;}