.slider1{display:flex;margin:0 calc(50% - 50vw);width:100vw;height:320px;overflow:hidden}.slider1 ul{display:flex;padding:0;margin:0}.slider1 li{width:480px;list-style:none}.slider1 ul:first-child{animation:slide1 60s -30s linear infinite}.slider1 ul:last-child{animation:slide2 60s linear infinite}@keyframes slide1{0%{transform:translateX(100%)}to{transform:translateX(-100%)}}@keyframes slide2{0%{transform:translateX(0)}to{transform:translateX(-200%)}}