lovecoding
/
web0715


			
				
					
						
						
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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>
    <script src="./rem.js"></script>
    <style>
        body {
            margin: 0;
        }

        ul {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        .container {
            font-size: .36rem;
        }

        /* 头部  */
        .top-head header {
            background-color: #e54847;
            height: 0.7rem;
            text-align: center;
            line-height: 0.7rem;
            position: relative;
        }

        .top-head header span {
            color: #fff;
        }

        .top-head .more-btn {
            position: absolute;
            right: 20px;
            top: 0;
        }

        .top-head .more-btn ul {
            display: none;
            position: absolute;
            top: 0.5rem;
            left: -1.5rem;
            width: 2rem;
            z-index: 1;
            box-shadow: 0 .06rem .18rem 0 rgba(0, 0, 0, .1);
        }

        .top-head .more-btn .active {
            display: block;
        }

        .top-head .more-btn ul li {
            height: .9rem;
            line-height: .9rem;
            font-size: 0.3rem;
            text-align: center;
            color: #333;
            background-color: #fff;
            border-bottom: .02rem solid #f0f0f0;
        }

        .top-head .more-btn img {
            width: .3rem;
            height: .3rem;
        }

        /* 头部导航 */
        .top-head nav {
            height: .9rem;
            border-bottom: 0.02rem solid #e6e6e6;
            display: flex;
            justify-content: space-between;
            padding: 0 .2rem;
            align-items: center;
        }

        .top-head .nav-center {
            flex-grow: 3;
            margin: 0 .2rem;
            position: relative;
        }

        .top-head .nav-center ul {
            display: flex;
            justify-content: space-around;
            font-size: .3rem;
            font-weight: 700;
            color: #666;
            align-items: center;
        }

        .top-head .nav-center .bottom-line {
            position: absolute;
            bottom: -5px;
            width: .4rem;
            height: 3px;
            border-radius: 3px;
            background-color: #f03d37;
            transition: left .1s linear;
        }

        .top-head .nav-center[data-tab-val="one"] .bottom-line {
            left: 4vw;
        }

        .top-head .nav-center[data-tab-val="two"] .bottom-line {
            left: 18vw;
        }

        .top-head .nav-center[data-tab-val="three"] .bottom-line {
            left: 32vw;
        }

        .top-head .nav-center[data-tab-val="four"] .bottom-line {
            left: 49vw;
        }

        .top-head .nav-center .active {
            color: #333;
            font-size: .34rem;
        }

        .top-head .nav-right {
            flex-grow: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .top-head .nav-right img {
            width: .4rem;
            height: .4rem;
        }

        .top-head .nav-left {
            display: flex;
            align-items: center;

        }

        .top-head .nav-left span {
            color: #666;
            font-size: .3rem;
        }

        .top-head .nav-left i {
            border-top: 5px solid #666;
            border-left: 5px solid transparent;
            border-right: 5px solid transparent;
            border-bottom: 5px solid transparent;
            transform: translate(3px, 3px);
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="top-head">
            <header>
                <span>猫眼电影</span>
                <div class="more-btn">
                    <img id="list-btn" src="./img/list.png" alt="list">
                    <ul class="">
                        <li>首页</li>
                        <li>榜单</li>
                        <li>热点</li>
                        <li>商城</li>
                    </ul>
                </div>
            </header>
            <nav>
                <div class="nav-left">
                    <span>哈尔滨</span>
                    <i></i>
                </div>
                <div class="nav-center" data-tab-val="one">
                    <ul>
                        <li data-tab="one" class="active">热播</li>
                        <li data-tab="two">影院</li>
                        <li data-tab="three">待映</li>
                        <li data-tab="four">经典电影</li>
                    </ul>
                    <div class="bottom-line"></div>
                </div>
                <div class="nav-right">
                    <img src="./img/search.png" alt="img">
                </div>
            </nav>
        </div>
        <div class="center-content"></div>
        <div class="bottom-nav"></div>
    </div>
    <script>
        let listBtn = document.querySelector("#list-btn");
        //控制顶部菜单栏的显示和隐藏
        listBtn.ontouchstart = function () {
            //toggle 切换 菜单 ul 上面active类 如果有就移除 如果没有就添加
            this.nextElementSibling.classList.toggle("active");
        }
        let navCenter = document.querySelector(".nav-center");
        let navList = navCenter.querySelectorAll("li");
        // 循环为列表按钮添加点击事件
        for (let i = 0; i < navList.length; i++) {
            navList[i].ontouchstart = function (e) {
                // 循环消除所有按钮的选中状态
                for (let j = 0; j < navList.length; j++) {
                    navList[j].classList.remove("active")
                }
                // 为当前按钮添加选中状态
                this.classList.add("active");
                // 获取当前按钮dataset值
                let thisTab = e.target.dataset.tab
                // 为父元素添加data-tab-val值以控制下划线的移动位置
                navCenter.setAttribute("data-tab-val", thisTab)
                // 向前地址中添加选中按钮的hash值
                location.hash = thisTab;
            }
        }
        // 监听hash值变化修改选中项
        window.onhashchange = function () {
            let thisHash = location.hash.substr(1).trim();
            if (thisHash) {
                navCenter.setAttribute("data-tab-val", thisHash);
                for (let i = 0; i < navList.length; i++) {
                    if (navList[i].dataset.tab == thisHash) {
                        navList[i].classList.add("active");
                    } else {
                        navList[i].classList.remove("active");
                    }
                }
            }else{
                navCenter.setAttribute("data-tab-val", "one");
                for (let i = 0; i < navList.length; i++) {
                    navList[i].classList.remove("active");
                }
                navList[0].classList.add("active");
            }
        }
    </script>
</body>

</html>