1 <!DOCTYPE html> 2 <html lang="zh-cn"> 3 <head> 4 <meta charset="utf-8"> 5 <title>标准化页面格式</title> 6 <style type="text/css"> 7 #login{ 8 width:300px; 9 height: 250px; 10 background: gray; 11 margin: 0 auto; 12 padding-top: 30px; 13 font-size: 16px; 14 text-align: center; 15 } 16 #username,#password{ 17 width:150px; 18 height: 20px; 19 } 20 #Login,#rset{ 21 width:90px; 22 height: 40px; 23 margin-left: 20px; 24 } 25 a{ 26 float: right; 27 } 28 </style> 29 <link rel="stylesheet" type="text/css" href=""> 30 </head> 31 <body> 32 <form id="login" action="#" method="get"> 33 username:<input type="text" value="请输入账号" id="username"><br /><br /> 34 password:<input type="password" value="88888888" id="password"><br /><br /> 35 <input type="submit" value="登录" id="Login" /> 36 <input type="reset" value="重置" id="rset" /><br /><br /> 37 <a href="#">忘记密码</a> 38 </form> 39 <script src="js/jquery.js"></script> 40 <script> 41 $(document).ready(function(){ 42 $("#username").focusin(function(){ 43 $("#username").val("") 44 }) 45 .focusout(function(){ 46 if($("#username").val()=="") 47 { 48 $("#username").val("请输入账号"); 49 } 50 }) 51 }) 52 </script> 53 </body> 54 </html>
样式有点丑，基本功能实现了