.row-fluid .sec4_video_module{padding:67px 0}.row-fluid .sec4_video_module .video_thumb_img{z-index:99;position:absolute;left:0;right:0;width:100%;height:100%}.row-fluid .sec4_video_module .video_thumb_img a{width:56px;height:56px;top:50%;left:50%;transform:translate(-50%,-50%);position:absolute}.row-fluid .sec4_video_module .sec4_video_perent{max-width:888px;margin:0 auto;padding-bottom:44.25%}