Pure js+html and pure css+html create accordion effect_javascript skills-JS Tutorial-php.cn

Pure js+html and pure css+html create accordion effect_javascript skills

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Release： 2016-05-16 15:06:35

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This article shares the two effects of making an accordion with pure js+html and making an accordion with pure css+html for your reference. The specific content is as follows

1. Pure css+html accordion effect

This kind of accordion written in CSS is relatively simple. It is mainly applied to the transition attribute in CSS.

The code is as follows:

<!DOCTYPE HTML>
<html>
<head>
<style>
body{background: url('bg.gif') repeat;}
ul,li,p{margin: 0px;padding: 0px;list-style: none;}
 #div{width: 1180px;height: 405px;border:5px solid #ccc;padding: 0px;margin: 0px auto;overflow: hidden;} 
 .list{width: 3200px;}
 .list li{float: left;width: 170px;height: 500px;;position: relative;
   -moz-transition:width 2s;
   transition: width 2s;
   -moz-transition: width 2s; /* Firefox 4 */
   -webkit-transition: width 2s; /* Safari 和 Chrome */
   -o-transition: width 2s; /* Opera */
 }
.list:hover li{width: 107px;}
.list li:hover{width: 538px;}
.list li p{width: 100%;height: 100%;opacity: 0.5;position: absolute;top: 0px;left: 0px;background: black; }
.list li:hover p{opacity:0}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript">
</script>
</head>
<body >
<div id="div">
   <ul class="list"> <!--如果设置父级与子级之间没有空隙的话，将margin和padding设为0即可-->
     <li><img src="image/1.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/2.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/3.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/4.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/5.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/6.jpg" style="width:538px;height:405px;"><p></p></li>
     <li><img src="image/7.jpg" style="width:538px;height:405px;"><p></p></li>
   </ul>
</div>
</body>
</html>

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2. Making accordion with pure js+html

A problem with this accordion is that when each li is moved individually, there is no problem, but when the movement is very fast, there is a gap in the rightmost li. I think it's a timer problem, that is, before each li has returned to its position, the next li starts moving. But my timer has been turned off.

Can anyone please leave me a message and help me figure out how to change it!

The code is as follows:

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>手风琴效果</title>
<link href="style.css" rel="stylesheet" type="text/css" />
<script src="perfectMove2.js"></script>
<script type="text/javascript">
window.onload=function()
{
  var oDiv=document.getElementById('show1');
  var iMinWidth=9999999;
  var aLi=oDiv.getElementsByTagName('li');
  var aSpan=oDiv.getElementsByTagName('span');
  var i=0;
  var bool=false;
  for(i=0;i<aLi.length;i++)
  {
    aSpan[i].index=i;
    aSpan[i].onmouseover=function ()
    {
       for(i=0;i<aLi.length;i++)
       {
         startMove(aLi[i],{width:this.offsetWidth});//调用运动函数
         bool=true;
       }
       if(bool)
       {
        startMove(aLi[this.index],{width:552});
       }
    }  
  }

};
</script>
</head>
<body>
<div id="show1">
  <ul>
    <li class="active">
      <span class="bg0">这是第一个</span>
      <img src="images/1.jpg" />
    </li>
    <li >
      <span class="bg1">这是第二个</span>
      <img src="images/2.jpg" />
    </li>
    <li >
      <span class="bg2">这是第三个</span>
      <img src="images/3.jpg" />
    </li>
    <li>
      <span class="bg3">这是第四个</span>
      <img src="images/4.jpg" />
    </li>
    <li>
      <span class="bg4">这是第五个</span>
      <img src="images/5.jpg" />
    </li>
    <li>
      <span class="bg5">这是第六个</span>
      <img src="images/6.jpg" />
    </li>
  </ul>
</div>
</body>
</html>

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perfectMove2.js code is as follows:

function getStyle(obj,attr)//用此种方法获取样式中的属性
{
   if(obj.currentStyle)
   {
    return obj.currentStyle[attr];
   }
   else
   {
    return getComputedStyle(obj,false)[attr];
   }
}
function startMove(obj,json,fn)
{
    clearInterval(obj.timer);//清除定时器
    obj.timer=setInterval(function ()
    {
    var stop=true;
    for(var attr in json)
    {
           var iCur=0;
           if(attr=='opacity')
           {
             iCur=parseInt(parseFloat(getStyle(obj, attr))*100);//这里加parseInt是避免div的数值不稳定，在波动
           }
           else
          {
             iCur=parseInt(getStyle(obj, attr));
          }
           var iSpeed=(json[attr]-iCur)/8;
           iSpeed=iSpeed>0&#63;Math.ceil(iSpeed):Math.floor(iSpeed);
          if(iCur!=json[attr])
          {
              stop=false;
          }
          if(attr=='opacity')
             {
              obj.style.filter='alpha(opacity:'+(iCur+iSpeed)+')';
              obj.style.opacity=(iCur+iSpeed)/100;
            }
          else
            {
               obj.style[attr]=iCur+iSpeed+'px';
            }
         
    }
    if(stop)
    {
     clearInterval(obj.timer);
     if(fn){fn();}
    }
   }, 30)
    
}

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The above is the entire content of this article. I hope it will be helpful to everyone in learning javascript programming.