老师帮忙检查一下代码

来源：3-12 编程练习

lcy_18

2020-03-20 20:14:17

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>可设置宽和高的元素</title>
    <style type="text/css">
       div{ width:600px;height:200px;border:1px solid gray;font-size:14px;}
       /*补充样式*/
       p{width:30%;font-size:2em;}
       .input{width:30%;height:25%;}
       .sub{width:100px;height:30px;background-color:orange;font-size:20px;}
       span{width:200px;height:300px;}
    </style>
</head>
<body>
    <div>
        <p>登录</p>
        <span>请输入您的信息：</span><input type="text" class="input"><br>
        <input type="submit" class="sub">
    </div>
</body>
</html>