实例：AppleTV标题字轮播效果

代码

Html代码：

<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="shortcut icon" href="https://liangxiansheng688.com.cn/favicon.ico" type="image/x-icon">
    <title>Document</title>
</head>
<body>
    <h2>
        Turn your living room into
        <div class="mask">
            <span data-show>a theater.</span>
            <span>a gym.</span>
            <span>a concert hall.</span>
            <span>an arcade.</span>
        </div>
    </h2>
</body>
</html>

CSS代码：

:root {
    --offset: 6px;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

h2 {
    width: 980px;
    font-size: 100px;
    font-family: Helvetica;
    line-height: 1.06;
    letter-spacing: -0.02em;
    color: #1d1d1f;
}

.mask {
    height: 106px;
    position: relative;
    /* border: 1px solid red; */
    overflow: hidden;
    margin-top: var(--offset);
}

.mask span {
    display: block;
    box-sizing: border-box;
    position: absolute;
    top: 100px;
    padding-bottom: var(--offset);

    background-size: 100% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-repeat: no-repeat;
}

.mask span[data-show] {
    transform: translateY(-100%);
    transition: .5s transform ease-in-out;
}

.mask span[data-up] {
    transform: translateY(-200%);
    transition: .5s transform ease-in-out;
}

.mask span:nth-child(1) {
    background-image: linear-gradient(45deg, #0ecffe 50%, #07a6f1);
}

.mask span:nth-child(2) {
    background-image: linear-gradient(45deg, #18e198 50%, #0ec15d);
}

.mask span:nth-child(3) {
    background-image: linear-gradient(45deg, #8a7cfb 50%, #633e9c);
}

.mask span:nth-child(4) {
    background-image: linear-gradient(45deg, #fa7671 50%, #f45f7f);
}

JavaScript代码：

setInterval(function () {
    const show = document.querySelector('span[data-show]')
    const next = show.nextElementSibling || document.querySelector('span:first-child')
    const up = document.querySelector('span[data-up]')

    if (up) {
        up.removeAttribute('data-up')
    }

    show.removeAttribute('data-show')
    show.setAttribute('data-up', '')

    next.setAttribute('data-show', '')
}, 2000)