html-css-js
/
8CSS盒子模型.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>8 CSS 盒子模型</title>

    <style>
        .demo {
            background-color: aqua;
            display: inline-block;
            border: 5px solid yellowgreen;
            padding: 50px;
            margin: 40px;
        }

        .border-demo {
            background-color: yellow;
            width: 300px;
            height: 100px;
            border-style: solid dashed dotted double;
            border-width: 20px;
            border-color: blueviolet;
            margin: 15px;
            padding: 17px;
        }
    </style>
</head>

<body>
    <h1>8 CSS 盒子模型</h1>
    <div class="demo">盒子模型示例</div>

    <div class="border-demo">这是一个边框的示例</div>
</body>

</html>