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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style type="text/css"> div { margin-left: 43%; } p { font: 12px/1.5 Tohama; border: 1px solid #1B1B17; width: 19%; background-color: yellow; display: none; } </style> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> </head> <body> <div> <form> <label> <input type="checkbox"> 记住密码 </label> <p>请不要在公众场合选择此选项。</p> </form> </div> <script type="text/javascript"> $("label").hover( function(){ $("p").css("display", "block"); }, function(){ $("p").css("display", "none"); }) </script> </body> </html>
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原文地址:http://www.cnblogs.com/samtrybest/p/5071446.html