朵拉 发表于 2024-4-8 23:24

海与灯塔（马黑黑原创）

本帖最后由 朵拉 于 2024-4-8 23:48 编辑 <br /><br /><style>
#papa { margin: 0 0 0 calc(50% - 593px); width: 1024px; height: 640px; background: navy; box-shadow: 3px 3px 20px #000; overflow: hidden; position: relative; z-index: 1; }
#papa::before , #papa::after { position: absolute; content: ''; left: var(--begin1); top: 0px; width: 100%; height: 100%; background: url('https://pic.imgdb.cn/item/66140e9e68eb935713912ebb.jpg') no-repeat center/cover; z-index: -1; }
#papa::after { left: var(--begin2); transform: scale(-1,1); }
#play { position: absolute; right: 70px; top: 120px; width: 100px; mix-blend-mode: multiply; cursor: pointer; animation: rotating 5s linear infinite var(--state); }
#vid { position: absolute; width: calc(100% + 160px); height: 100%; object-fit: cover; mix-blend-mode: screen; pointer-events: none; }
@keyframes rotating { to { transform: rotate(360deg); } }
</style>

<div id="papa">
    <audio id="aud" src="https://music.163.com/song/media/outer/url?id=2126393152" autoplay></audio>
    <video id="vid" src="https://img.tukuppt.com/video_show/2422006/00/02/13/5b51af9e299f9.mp4" autoplay muted loop></video>
    <img id="play" src="https://638183.freep.cn/638183/small/f01.png" alt="" />
</div>

<script>
var ww = papa.offsetWidth;

var step = 0.2, begin1 = 0, begin2 = ww, raf;

aud.loop = false;
aud.onpause = aud.onplaying = () =>moving();
aud.onseeked = () => cancelAnimationFrame(raf);
aud.onended = () => { cancelAnimationFrame(raf); aud.play(); };

play.onclick = () => { aud.paused ? aud.play() : aud.pause(); };

var moving = () => {
    begin1 += step;
    begin2 += step;
    if(begin1 >= ww) begin1 = -ww;
    if(begin2 >= ww) begin2 = -ww;
    let b2 = begin2 + (begin1 >= 0 ? 1 : -1);
    papa.style.setProperty('--begin1', begin1 + 'px');
    papa.style.setProperty('--begin2', b2 + 'px');
    aud.paused
      ? (cancelAnimationFrame(raf), papa.style.setProperty('--state', 'paused'), vid.pause())
      : (raf = requestAnimationFrame(moving), papa.style.setProperty('--state', 'running'),vid.play());
};
</script>

朵拉 发表于 2024-4-8 23:49

@马黑黑
老师 晚上好，学生交作业，请指正哈{:4_190:}

马黑黑 发表于 2024-4-8 23:55

{:4_190:}

红影 发表于 2024-4-9 16:03

漂亮。欣赏朵宝好帖{:4_187:}
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