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96 lines
2.5 KiB
96 lines
2.5 KiB
<!DOCTYPE html>
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<html lang="en">
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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>bilibili导航滑动案例</title>
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</head>
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<body>
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<style>
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body,
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html {
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height: 100%;
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width: 100%;
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padding: 0;
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margin: 0;
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}
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.navbar {
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background-color: #ecf9fa;
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box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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z-index: 999;
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width: 100%;
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}
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div#myNavbar.nav-links {
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display: flex;
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justify-content: space-around;
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margin: 0;
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list-style: none;
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vertical-align: middle;
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font-size: 18px;
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font-weight: bold;
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width: 100%;
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}
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.nav-links a {
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text-decoration: none;
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color: #000;
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padding: 10px 15px;
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margin: 0 10px;
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padding: 20px;
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transition: border-bottom 0.3s ease;
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font-size: 18px;
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font-weight: bold;
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}
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.line {
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width: 60px;
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height: 5px;
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bottom: 0;
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display: flex;
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text-align: center;
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transform: translateX(130px);
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background-color: #000;
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position: absolute;
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transition: transform 0.3s ease;
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}
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</style>
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<nav class="navbar">
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<div class="nav-links" id="myNavbar">
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<a href="#college">首页</a>
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<a href="#news">分类<a>
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<a href="#PartyBuilding">报道</a>
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<a href="#department">资讯</a>
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<a href="#congratulation">交流</a>
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</div>
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<div class="line"></div>
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</nav>
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<script>
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//获取父元素，添加事件委托
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const list = document.querySelector('.nav-links')
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const line = document.querySelector('.line')
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//给a注册事件
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list.addEventListener('click', function (e) {
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if (e.target.tagName === 'A') {
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// console.log(11);
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//得到当前offsetLeft的值
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// console.log(e.target.offsetLeft);
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line.style.transform = `translateX(${e.target.offsetLeft}px)`
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}
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})
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</script>
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</body>
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</html> |