<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title></title> <style> .img-content{width: 500px;height: 300px;margin: 0 auto;position: relative} .img-content img{ position: absolute; cursor: pointer; transition: transform 2s; -moz-transition: -moz-transform 2s; -webkit-transition: -webkit-transform 2s; -o-transition: -o-transform 2s; } .big{ z-index: 2; transform:scale(2,2); -ms-transform:scale(2,2); /* IE 9 */ -moz-transform:scale(2,2); /* Firefox */ -webkit-transform:scale(2,2); /* Safari and Chrome */ -o-transform:scale(2,2); /* Opera */ } .normal{ transform:scale(1,1); -ms-transform:scale(1,1); /* IE 9 */ -moz-transform:scale(1,1); /* Firefox */ -webkit-transform:scale(1,1); /* Safari and Chrome */ -o-transform:scale(1,1); /* Opera */ } </style> <script src="../jquery/jquery.min.js"></script> <script> $(function(){ $('.img-content img').off().on('mouseover',function(){ $(this).addClass('big').removeClass('normal') }).on('mouseout',function(){ $(this).addClass('normal').removeClass('big') }) }) </script></head><body><div class="img-content"> <img src="../images/tags1.png" alt="" style="max-width:90%"/> <img src="../images/tags2.png" alt="" style="max-width:90%"/> <img src="../images/tags3.png" alt="" style="max-width:90%"/> <img src="../images/tags4.png" alt="" style="max-width:90%"/> <img src="../images/tags5.png" alt="" style="max-width:90%"/> <img src="../images/tags6.png" alt="" style="max-width:90%"/></div></body></html>图片大小 128 * 128
transition 定义过度效果，1、可同时设置几个css样式，2、可定义transform（2d 3d 转换）的过度效果
transition: width 2s, height 2s, transform 2s;-moz-transition: width 2s, height 2s, -moz-transform 2s;-webkit-transition: width 2s, height 2s, -webkit-transform 2s;-o-transition: width 2s, height 2s,-o-transform 2s;
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