来直接上代码吧：
<html> <head> <title>使用样式表修饰表单的页面</title> <style> body{ background-color:white; } fieldset{//设置表单域集合的样式表 border:2px dashed red; padding:10px; margin-top:10px; margin-bottom:20px; } legend{//设置表单域集合标题的样式表 font-family:微软雅黑; font-size:90%; letter-spacing:-1px; font-weight:bold; line-weight:1.1; color:#fff; background:orange; border:1px solid #333; padding:2px 6px; } h1{ font-family:微软雅黑; font-size:175%; letter-spacing:-1px; font-weight:normal; line-weight:1.1; color:#333; } label{ width:140px; height:32px; margin-top:3px; margin-right:2px; padding-top:11px; padding-left:6px; background-color:maroon; float:left; display:block; font-family:幼圆; font-size:115%; letter-spacing:-1px; font-weight:normal; line-weight:1.1; color:yellow; } .form{ margin:0; padding:0; } #container{//设置页面主题在窗口中的位置 width:750px; margin:auto; padding:10px; } #top{//用top确定页面标题在页面中的位置 width:680px; height:50px; } #leftSide{ width:530px; padding-top:30px; float:left; } .clear{ clear:both; } .holder{ background-color:#fff; } .div_textbox{//通过样式表制作表单域外部的样式 width:347px; float:right; height:35px; margin-top:3px; padding-top:5px; padding-bottom:3px; padding-left:5px; background-color:#E6E6E6; } .textbox{//通过样式表制作表单域内部的样式 background-color:#FFFFFF; background-repeat:no-repeat; background-position:left; width:285px; font:normal 19px 微软雅黑; color:black; padding:3px 5px 3px 19px;//通过设置不同大小的空距来制作阴影效果 } textbox:focus,.textbox:hover{//通过伪类来确定鼠标滑过表单域的样式 background-color:orange; } .username{ background-repeat:no-repeat; background-position:left; background-color:#FFFFFF; width:285px; font:normal 18px 微软雅黑; color:black; padding:3px 5px 3px 19px; } .username:focus,.username:hover{ background-color:orange; } .password{//设置填写密码时的样式 background-repeat:no-repeat; background-position:left; background-color:#FFFFFF; width:285px; font:normal 18px 微软雅黑; color:black; padding:3px 5px 3px 19px; } .password:focus,.password:hover{ background-color:orange; } .button_div{//设置按钮的样式 width:287px; folat:right; background-color:#fff; border:1px solid #ccc; text-align:right; margin-top:3px; padding:5px 32px 3px; } .buttons{ backgound:#e3e3db; font-size:12px; color:#989070; padding:6px 14px; border-width:2px; border-style:solid; border-color:#fff #d8d8d0 #d8d8d0 #fff; text-decoration:none; text-transform:uppercase; font-weight:bold; } </style> </head> <body> <div id="container'> <div id="top"> <h1>请填写这张表格：</h1> </div> <div id="leftSide"> <fieldset> <legend>注册信息：</legend> <form action="login.php" method="post" class="form"> <label for="username">注册名：</label> <div class="div_textbox"> <input name="username" type="text" class="username" id="username" value="depp"/> </div> <label for="password">密码：</label> <div class="div_textbox"> <input name="password" type="password" class="password" id="password" value="password"/> </div> <div class="button_div"> <input name="Submit" type="button" value=" 确 定 " class="buttons"/> </div> </form> <div class="clear"></div> </fieldset> <hr size="1"></hr> <fieldset> <legend>个人信息：</legend> <form action="..." method="post" class="form"> <label for="name">姓名：</label> <div class="div_textbox"> <input name="name" type="text" class="textbox" id="name" value="Depp"/> </div> <label for="address">地址：</label> <div class="div_textbox"> <input name="address" type="text" class="textbox" id="address" value="G1128"/> </div> <label for="city">所属区：</label> <div class="div_textbox"> <input name="city" type="text" class="textbox" id="city" value="浦东新区"/> </div> <label for="country">城市：</label> <div class="div_textbox"> <input name="country" type="text" class="textbox" id="country" value="上海"/> </div> <div class="button_div"> <input name="Submit" type="button" value="确定" class="buttons"/> </div> </form> </fieldset> </div> </div> </body> </html>
（鼠标放在“密码”那个位置）