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JS code example to implement the mask effect when the mouse is placed on the picture

黄舟Original: 2017-10-21 10:10:352237browse

The example of this article shares with you the specific code of js to achieve the masking effect of moving the mouse to the picture for your reference. The specific content is as follows

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>mask</title>
<style>
  .pic{
    width:300px;
    height:250px;
    background:url(icon/product1.jpg) no-repeat;
    margin:40px auto;
  }
  #mask{
    width:300px;
    height:250px;
    background-color: gray;
    margin:40px auto;
    opacity: 0.5;
    z-index: 1000;
  }
</style>  
</head>
<body>
  <p class="pic">
    <!-- <p id="mask"></p> -->
  </p>
</body>
<script>
  var pic=document.getElementsByClassName("pic")[0];
  var d=document.createElement("p");
  pic.onmouseenter=function(){
    // var d=document.createElement("p");
    d.id="mask";
    pic.appendChild(d);
  };
  pic.onmouseleave=function(){
    this.removeChild(d);
  }; 
</script>
</html>

Effect picture:

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JS code example to implement the mask effect when the mouse is placed on the picture

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