.word-list20 .head{height:280px;background-size:cover;background-repeat:no-repeat;background-position:50%;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;font-size:60px;color:#fff;letter-spacing:40px}.word-list20 .content,.word-list20 .head{display:-webkit-box;display:-ms-flexbox;display:flex}.word-list20 .content{padding-top:80px;padding-bottom:110px;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}.word-list20 .content .item{margin-bottom:40px}.word-list20 .content .item .video{width:580px;height:320px;background:#d8d8d8;overflow:hidden}.word-list20 .content .item .title{padding-top:16px;font-size:28px;font-weight:500;color:#000;line-height:40px}