表单代码:
<form name="form" method="POST" action="">
<input type="text" value="用户名" />
<input type="password" value="密码" />
<input type="submit" name="button" value="登录" class="xiaoka_tj"/>
</form>
CSS只是用来写样式的。要写输入框就用HTML的<input>标签。例如:<input type="text" name="username" /><input type="password" name="password">