js实现正方形颜色从下往上升的效果

时间:2020-05-13 人气:0
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<script src="jquery-1.8.2.js" type="text/javascript"></script>
<script type="text/javascript">
 $(function(){
  interid=setInterval(Showgao,1);
  var i=1;
  $('#top').height(8);
  $('#buttom').css('marginTop',42);
  $('#buttom').css('background','#d6d6d6');
  function Showgao()
  {
    var oldH=$('#buttom').css('marginTop');
    var h= oldH.substr(0,oldH.indexOf('px'));
    $('#buttom').css('marginTop',h-1);
    $('#buttom').height(i);
    i++;
    if(i==42){clearInterval(interid);}
  }
  
  interid1=setInterval(Showgao1,1);
  var i1=1;
  $('#top1').height(4);
  $('#buttom1').css('marginTop',46);
  $('#buttom1').css('background','red');
  function Showgao1()
  {
    var oldH=$('#buttom1').css('marginTop');
    var h= oldH.substr(0,oldH.indexOf('px'));
    $('#buttom1').css('marginTop',h-1);
    $('#buttom1').height(i1);
    i1++;
    if(i1==30){clearInterval(interid1);}
  }
});
</script>
<body>
<style>
  .container{width:20px;height:50px;border:1px solid #999;font-size:10px;float:left;margin-left:5px;}
</style>
<div class="container" onclick="javascript:alert(1);" >
   <div id="top">82%</div>
   <div id="buttom"></div>
</div>
<div class="container" onclick="javascript:alert(1);" >
   <div id="top1" >62%</div>
   <div id="buttom1"></div>
</div>
</body>
</html>
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