.top{margin:20px 0;background:#f4f4f4;padding:15px 35px;border-radius:4px}.ul{width:100%;display:flex;flex-wrap:wrap}.ul>.li{flex:0 0 auto;margin:0 20px 20px 0}.video{width:80px;height:80px;display:flex;align-items:center;justify-content:center}.video>.icon{font-size:26px}