lovecoding
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W250511


			
				
					
						
						
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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body{
            background-color: #f0f4c3;
        }

        .content{
            width: 600px;
            height: 600px;
            background-color: #fff;
            position: absolute;
            top: 50%;
            left: 50%;
            margin-top: -300px;
            margin-left: -300px;
            border-radius: 20px;
            box-shadow: 0 0 10px rgba(0,0,0,0.5);
            padding-top: 20px;
        }
        .content-info h1{
            text-align: center;
            color: #689f38;
        }
        .content-info .info-center{
            width: 300px;
            margin: 0 auto;
            text-align: center;
        }
        .content-info .info-bottom{
            text-align: center;
            color: #999;
            font-size: 12px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="content">
            <div class="content-info">
                <h1>趣味气泡 Position 练习</h1>
                <p class="info-center"><strong>任务：</strong> 观察并理解气泡的定位方式，鼠标悬停气泡试试看！</p>
                <p class="info-bottom">（气泡用 absolute，气泡区用 relative，底部说明条用 fixed）</p>
            </div>
            <div class="content-bubble"></div>
        </div>
        <div class="footer"></div>
    </div>
</body>
</html>