DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>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="images/01.jpg" alt=""/>a>li>
<li><a href="#"><img src="images/02.jpg" alt=""/>a>li>
<li><a href="#"><img src="images/03.jpg" alt=""/>a>li>
<li><a href="#"><img src="images/04.jpg" alt=""/>a>li>
<li><a href="#"><img src="images/05.jpg" alt=""/>a>li>
<li><a href="#"><img src="images/06.jpg" alt=""/>a>li>
ul>
div>
body>
html>
<script src="jquery-1.12.4.js">script>
<script>
$(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>

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