简单静态HTML网页设计作业用CSS实现表单form布局

<form action="" method="post"> 
<label for="user">姓名:</label> 
<input type="text" id=user name="user" value="" /><br /> 

<label for="email">邮件:</label> 
<input type="text" id=email name="email" value="" /><br /> 

<label for="comment">备注:</label> 
<textarea id=comment name="comment"> 
</textarea><br /> 
 
<input type="submit" id="sbutton" value="确定" /><br /> 
</form> 

<style type="text/css"> 
<!-- 
label{float: left;width: 80px;line-height:25px;} 
form{margin:0px} 
input{width: 180px;border:1px solid #808080;} 
textarea{width: 250px;height: 150px;} 
 
#sbutton{margin-left: 80px;margin-top: 5px;width:80px;} 
 
br{clear: left;} 
--> 
</style>