.videoItem_collector{list-style:outside none none;margin:0;padding:0}.videoItem_collector:after,.videoItem_collector:before{content:"";display:block;clear:both}.videoItem_collector li{float:left;width:20%}.videoItem_collector li a{display:block;padding:10px}.videoItem_collector li a:hover{background-color:#eee}.videoItem_collector li img{height:auto;width:100%}.videoItem_collector li .name{display:block;font-size:14px}.videoItem_collector li .date{color:#333;display:block}.videoItem_collector>li:nth-child(3n+1),.videoItem_collector>li:nth-child(4n+1){clear:none}.videoItem_collector>li:nth-child(5n+1){clear:left}.videoItem_collector li:hover{box-shadow:0 0 10px 0 rgba(0,0,0,.6);z-index:1;position:relative}@media screen and (max-width:1640px){.videoItem_collector li{width:25%}.videoItem_collector>li:nth-child(3n+1),.videoItem_collector>li:nth-child(5n+1){clear:none}.videoItem_collector>li:nth-child(4n+1){clear:left}}@media screen and (max-width:1375px){.videoItem_collector li{width:33.33%}.videoItem_collector>li:nth-child(4n+1),.videoItem_collector>li:nth-child(5n+1){clear:none}.videoItem_collector>li:nth-child(3n+1){clear:left}}