<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-Type" content="text/html; charset=gbk"> <title>鼠标移入/移出改变样式</title> <style type="text/css"> body{color:#fff;font:12px/1.5 Tahoma;} #div1{width:150px;height:150px;margin:0 auto;padding:10px; background:black;border:10px solid #000;cursor:crosshair;} #div1.hover{color:red;background:#f0f0f0;border:10px solid red;} </style> </head> <body> <div class="" id="div1">鼠标移入改变样式，鼠标移出恢复</div> <script type="text/javascript"> window.onload = function(){ var div1 = document.getElementById("div1"); //绑定鼠标移入事件 div1.onmouseover = function(){ this.className = "hover"; } //绑定鼠标移出事件 div1.onmouseout = function(){ this.className = ""; } }; </script> </body> </html>