lovecoding
/
vipAllDay


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        header, nav, footer {
            width: 100%;
            height: 80px;
            font-size: 24px;
            font-weight: bold;
            text-align: center;
            line-height: 80px;
            background: #ccc;
            margin-top: 10px;
        }
        .part1 {
            width: 100%;
            height: 150px;
            background: #f00;
        }
        .part2 {
            width: 100%;
            height: 150px;
            background: #00f;
        }
        @media screen and (max-width: 758px) {
            .picture {
                width: 100%;
                height: 300px;
                background: url("./images/3.jpg") no-repeat center center;
            }
        }
        @media screen and (min-width:768px) and (max-width: 1000px) {
            .picture {
                width: 100%;
                height: 500px;
                background: url("./images/1.jpg") no-repeat center center;
                margin-top: 10px;
            }
            .main {
                display: flex;
            }
            .part1 {
                flex: 3;
            }
            .part2 {
                flex: 2;
                margin-left: 15px;
            }
        }
        @media screen and (min-width: 1001px) {
            .picture {
                width: 100%;
                height: 500px;
                background: url("./images/2.jpg") no-repeat center center;
            }
        }
    </style>
</head>
<body>
    <div>
        <header>页眉</header>
        <nav>导航</nav>
        <div class="picture"></div>
        <div class="main">
            <div class="part1"></div>
            <div class="part2"></div>
        </div>
        <footer>页尾</footer>
    </div>
</body>
</html>