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Implementation of mouse-responsive transparency gradient effect

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php中世界最好的语言Original
2018-03-14 17:12:061535browse

This time I will bring you the implementation of the mouse-responsive transparency gradient effect. What are the precautions for making the mouse-responsive transparency gradient effect? ​​The following is a practical case, let's take a look.

The example in this article describes jQuery's implementation of mouse-responsive transparency gradient animation effect. Share it with everyone for your reference, the details are as follows:

Let’s take a look at the running effect first:

##The specific code is as follows:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>js动画-透明度变化</title>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.js"></script>
<style>
* {
  margin: 0;
  padding: 0;
  font-family:"微软雅黑"
}
#box{
  height:100px;
  width:100px;
  background-color:#0099CC;
  margin-top:200px;
  position:relative;
  /*透明度变化*/
  left:0px;
  filter:alpha(opacity:30);
  opacity:0.3;
}
span{
  display:block;
  color:blue;
  width:25px;
  height:100px;
  background-color:#FFFF99;
  position:absolute;
  left:100px;
}
</style>
</head>
<body>
  <p id="box">
    <span>移动</span>
  </p>
<script>
window.onload=function(){
  var p1=document.getElementById("box");
  p1.onmouseover=function(){
    startMove(100);
  }
  p1.onmouseout=function(){
    startMove(30);
  }
}
var timer=null;
var alpha=30;
function startMove(itarget){
  clearInterval(timer);
  var p1=document.getElementById("box");
  timer=setInterval(function(){
    var speed=0;
    if(alpha>itarget){
      speed=-10;
    }else{
      speed=10;
    }
    if(alpha==itarget){
      clearInterval(timer);
    }else{
      alpha+=speed;
      p1.style.filter="alpha(opacity:"+alpha+")";
      p1.style.opacity=alpha/100;
    }
  },100)
}
</script>
</body>
</html>

I believe it After reading the case in this article, you have mastered the method. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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