.video_list_left{ float:left; width:150px; margin-right:50px;}
.video_list_left ul{ border-right:1px solid #fff; overflow:hidden; padding-bottom:50px;}
.video_list_left ul li{ float:left; width:100%; color:#fff; font-size:26px; line-height:42px; cursor:pointer;}
.video_list_left ul li a{color:#fff; font-size:26px;}
.video_list_left ul li.cur{ font-weight:bold;}
.playvideo_list{ float:left; width:1000px;}
.playvideo_list li{width:420px; margin-bottom:50px; text-align:center; position:relative; cursor: pointer; height:232px;}
.playvideo_list li .mask{ display:block; background:#222;opacity:0.8;filter:alpha(opacity=80); width:100%;height:100%; position: absolute; left: 0%;top: 0%; border-radius:0;}
.playvideo_list li .video_play_box{ z-index:999; width:420px; position: absolute; left: 0%;top: 50%; transform: translateY(-50%); -webkit-transform: translateY(-50%); -moz-transform: translateY(-50%);}
.playvideo_list li .video_play_box p{ color:#999; font-size:20px; line-height:30px;}