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HTML--浮动布局练习

article 2024/12/25 1:43:43

<!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>
        /* 整个浏览器页面 */
        html,
        body {
            background-color: #00005d;
            height: 100%;
            margin: 0;
        }

        .page {
            /* 定宽 */
            width: 1100px;
            margin-top: 0;
            margin-bottom: 0;

            margin-right: auto;
            margin-left: auto;

            /* margin:0,auto; 不支持margin的多个属性值，F12显示属性值无效*/
            height: 100%;
        }

        header {
            background-color: #869dc7;
            height: 150px;
            /* 原图像素254*150 */
            background-image: url(images/lighthouselogo.jpg);
            background-repeat: no-repeat;
        }

        h1 {
            color: #00005d;
            font-size: 55px;
            font-family: Verdana, Geneva, Tahoma, sans-serif;
            font-weight: bold;
            text-align: center;
            line-height: 150px;
            margin: 0;
        }

        aside {
            background-color: #b3c7e6;
            width: 180px;
            margin: 0;
            /* height: 620px; */
            height: calc(100% - 150px - 50px);
            float: left;
        }

        main {
            background-color: white;
            width: 920px;
            /* height: 620px; */
            height: calc(100% - 150px - 50px);
            float: right;
        }

        h2 {
            color: #90a5cb;
            padding-top: 10px;
            padding-left: 20px;
            font-weight: bold;
            font-size: 25px;
        }

        main p {
            padding-left: 20px;
            font-family: Verdana, Geneva, Tahoma, sans-serif;
            font-size: 18px;
        }

        footer {
            background-color: #869dc7;
            height: 50px;
            /* 如果不加clear属性，会受到中间元素float影响移动到上边 */
            clear: both;
            /* 水平居中 */
            text-align: center;
            /* 无法利用margin:0,auto;属性 借助line-height=height   */
            line-height: 50px;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 14px;
            color: #00005d;
        }
    </style>
</head>

<body>
    <section class="page">
        <header>
            <h1>Lighthouse Island Bistro</h1>
        </header>
        <!-- <div class="middle"> -->
        <aside>
            <ul
                style="list-style: none;font-family: Arial, Helvetica, sans-serif;font-weight: bold;color: white;font-size: 20px;">
                <li style="color: #eae9ea;">Home</li>
                <li>Menu</li>
                <li>Directions</li>
                <li>Contact</li>
            </ul>
        </aside>
        <main>
            <div style="float: right;clear: both;">
                <img src="images/lighthouseisland.jpg" style="padding: 20px;padding-top:40px;height: 400px;">
            </div>
            <h2 style="padding-top: 20px;">Locally Roasted Free-Trade Coffee</h2>
            <p>Indulge in the aroma of freshly ground roast coffee. Specialty drinks are available hot or cold.
            </p>

            <h2>Specialty Pastries</h2>
            <p>Enjoy a selection of our fresh-baked, organic pastries, including fresh-fruit muffins, scones,
                croissants, and cinammon rolls.
            </p>

            <h2>Lunchtime is Anytime</h2>
            <p>Savor delicious wraps and sandwiches on hearty, whole-grain breads with locally-grown salad, fruit,
                and vegetables.
            </p>

            <h2>Panoramic View</h2>
            <p>Take in some scenery! The top of our lighthouse offers a panoramic view of the countryside.
                Challenge your friends to climb our 100-stair tower.
            </p>
        </main>
        <!-- </div> -->
        <footer>Copyright © 2021
        </footer>
    </section>
</body>

</html>

定宽浮动布局，设计页面在整个浏览器页面水平居中位置，浏览器页面缩小时，仍水平居中，出现水平滚动条，显示不到的页面内容可以通过滚动条调节。