结合 CSS3 transition transform 实现简单的跑马灯效果的示例

<div lantern>  <ul>    <li>1</li>    <li>2</li>    <li>3</li>    <li>4</li>  </ul></div>

* {  margin: 0;  padding: 0;}[lantern] {  overflow: hidden;}ul {  white-space: nowrap;  font-size: 0;  transform: translateX(0);  transition: transform 0s linear;}li {  width: 50vw;  border: 1px solid red;  display: inline-block;  height: 30px;  font-size: 16px;}

function lantern($element,speed = 10) {    let liWidth = 0;    let $ul = $element.find("ul");    function run(init = false) {      let $li = $ul.find("li").first();      liWidth = $li.outerWidth();      if(!init){        $ul.append($li[0].outerHTML);        $li.remove();      }            $ul[0].style.transitionDuration = "0s";      $ul[0].style.transform = "translateX(0)";      setTimeout(function() {        $ul[0].style.transitionDuration = speed + "s";        $ul[0].style.transform = "translateX(-" + liWidth + "px)";      }, 20);    }    run(true);    setTimeout(() => {      setInterval(run, speed * 1000);    }, 0);  } lantern($('[lantern]'), 20);