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Native JS implements marquee effect

高洛峰Original: 2017-02-21 14:51:422052browse

This article mainly shares the sample code for realizing the marquee effect using native JS. It has a very good reference value, let’s take a look with the editor below

The effect is as follows: (You can copy the code to view the dynamic effect, and you can choose to add the pictures in the case)

The code is as follows:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title></title>
 <style>
  *{
   margin:0;
   padding:0;
   list-style: none;
  }
  p{
   position: relative;
   width: 800px;
   height: 200px;
   border: 5px solid lightgreen;
   margin:10px auto;
   overflow: hidden;
  }
  p ul{
   position: absolute;
   left:0;
   top:0;
  }
  p ul li{
   width: 200px;
   height: 200px;
   float: left;
  }
  p ul li img{
   width:100%;
   height: 100%;
  }
 </style>
</head>
<body>
<p id="p1">
 <ul>
  <li><img src="http://www.qdfuns.com/misc.php?mod=attach&genre=editor&aid=b4251f00ef925cba01ed49ca117e14a7" alt=""/></li>
  <li><img src="http://www.qdfuns.com/misc.php?mod=attach&genre=editor&aid=d38403825519770211acbf49459ae7d7" alt=""/></li>
  <li><img src="http://www.qdfuns.com/misc.php?mod=attach&genre=editor&aid=53c83d39c62af65db998f4945bacaec2" alt=""/></li>
  <li><img src="http://www.qdfuns.com/misc.php?mod=attach&genre=editor&aid=5509f1a642644b40c8aa98c9e2c77a83" alt=""/></li>
 </ul>
</p>
<script>
 var oUl=document.getElementsByTagName(&#39;ul&#39;)[0];
 var lis=oUl.getElementsByTagName(&#39;li&#39;);
 oUl.innerHTML+=oUl.innerHTML;
 oUl.style.width=lis.length*lis[0].offsetWidth+&#39;px&#39;;
 var left=null;
 var timer=setInterval(function(){
  left-=3;
  if(left<-oUl.offsetWidth/2){
   left=0;
  }
  oUl.style.left=left+&#39;px&#39;
 },10)
</script>
</body>
</html>

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