69 lines
1.7 KiB
HTML
69 lines
1.7 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Fixed 与 Sticky</title>
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<style>
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body{
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background-color: rgb(248, 252, 255);
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margin: 0px;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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a{
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text-decoration: none;
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color: white;
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background-color: rgb(5, 94, 5);
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border-radius: 20px;
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padding: 10px 20px;
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position: fixed;
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right: 20px;
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bottom: 20px;
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font-size: 18px;
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}
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.page{
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width: min(700px,calc(100% - 40px));
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margin: 0 auto;
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}
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.topbar{
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padding: 15px;
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background-color: white;
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position: fixed;
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top: 0px;
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font-weight: 700;
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font-size: 17px;
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width: min(700px,calc(100% - 40px));
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}
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.content{
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height: 1100px;
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margin-top: 60px;
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}
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</style>
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</head>
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<body>
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<a class="help" href="#">帮助</a>
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<section class="page">
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<header class="topbar">学习导航</header>
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<div class="content">
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<p>向下滚动时观察导航位置。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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<p>这里放一些占位内容。</p>
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</div>
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</section>
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</body>
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</html>
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