突出显示_jquery

 

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style type="text/css">
    * {
      margin: 0;
      padding: 0;
    }
    
    ul {
      list-style: none;
    }
    
    body {
      background: #000;
    }
    
    .wrap {
      margin: 100px auto 0;
      width: 630px;
      height: 394px;
      padding: 10px 0 0 10px;
      background: #000;
      overflow: hidden;
      border: 1px solid #fff;
    }
    
    .wrap li {
      float: left;
      margin: 0 10px 10px 0;
      
    }
    
    .wrap img {
      display: block;
      border: 0;
    }
  </style>
</head>
<body>
  <div class="wrap">
    <ul>
      <li><a href="#"><img src="img/01.jpg" alt=""/></a></li>
      <li><a href="#"><img src="img/02.jpg" alt=""/></a></li>
      <li><a href="#"><img src="img/03.jpg" alt=""/></a></li>
      <li><a href="#"><img src="img/04.jpg" alt=""/></a></li>
      <li><a href="#"><img src="img/05.jpg" alt=""/></a></li>
      <li><a href="#"><img src="img/06.jpg" alt=""/></a></li>
    </ul>
  </div>
</body>
</html>
<script src="./jquery-1.12.4.js"></script>
<script>
  $(document).ready(function(){
    $('.wrap>ul>li').mouseenter(function(){
      $(this).css('opacity',1).siblings('li').css('opacity',0.4)
    })
    $('.wrap').mouseleave(function(){
      $(this).find('li').css('opacity',1)
    })
  })
</script>