表单与盒模型

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表单与盒模型</title>
    <style>
        .bt input:hover{
            background-color:lightblue;
        }
        .bt input:focus{
            background:#FFF;
        }
        .box{
            margin: 50px;
            padding: 10px;
            border: 5px solid #F9f;
            width: 500px;
            height: 100px;
            background-color: #ffD;
        }
        #boxa{
            margin: 0;
            padding: 50px;
            border: 1px solid #f00;
            background-color: #f9e;
        }
    </style>
</head>
<body>
    <form class="bt" action="" method="post">
        <input type="text">
        <br>
        <input type="text">
    </form>
    <hr>
    <div class="box">我是一个大盒子</div>
    <div id="boxa">我是另外一个大盒子</div>
</body>
</html>
表单与盒模型

表单与盒模型

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