朵拉 发表于 2025-2-15 17:05

等你等到我心痛（学习马黑黑scroll版纵向翻页效果）

<style>
      #papa { margin: 30px 0 30px calc(50% - 601px); width: 1200px; height: 720px; background: url('https://pic.imgdb.cn/item/6523e9d3c458853aef5f19cf.jpg') no-repeat center/cover; box-shadow: 3px 3px 8px black; display: grid; place-items: center; position: relative; }
      #stage { position: absolute; width: 460px; height: 600px; overflow: hidden; cursor: pointer; }
      #stage img { width: 100%; height: 100%; float: left; mask: radial-gradient(closest-side, red, red, transparent); }
      #stage img:hover { mask: unset; }
      #btnplay { --state: running; position: absolute; bottom: 10px;; width: 30px; height: 30px; color: white; display: grid; place-items: center; cursor: pointer; }
      #btnplay::before { position: absolute; content: ''; width: 100%; height: 100%; border: 2px dashed cyan; border-radius: 50%; animation: rot 8s linear infinite var(--state); }
      #btnplay:hover::before { border-style: dotted; }
      @keyframes rot { to { transform: rotate(360deg); } }
</style>

<div id="papa">
      <div id="stage">
                <img alt="" src="https://pic1.imgdb.cn/item/67b053e1d0e0a243d4ff9922.jpg" />
                <img alt="" src="https://pic1.imgdb.cn/item/67b053f2d0e0a243d4ff9925.jpg" />
                <img alt="" src="https://pic1.imgdb.cn/item/67b053ecd0e0a243d4ff9924.jpg" />
                <img alt="" src="https://pic1.imgdb.cn/item/67b053f8d0e0a243d4ff9926.jpg" />
                <img alt="" src="https://pic1.imgdb.cn/item/67b053ffd0e0a243d4ff9928.jpg" />
                <img alt="" src="https://pic1.imgdb.cn/item/67b053e7d0e0a243d4ff9923.jpg" />
      </div>
      <div id="btnplay">1</div>
      <audio id="aud" src="https://music.163.com/song/media/outer/url?id=2669253004" autoplay loop></audio>
</div>

<script>
var lastIdx = 0, pTimer;
var images = stage.querySelectorAll('img');
var mState = () => {
      btnplay.style.setProperty('--state', aud.paused ? 'paused' : 'running');
      btnplay.title = stage.title = aud.paused ? '点击播放' : '点击暂停';
      aud.paused ? clearTimeout(pTimer) : turn2();
};
var turn2 = (idx) => {
      idx = Math.floor(Math.random() * images.length);
      if(idx === lastIdx) idx = (idx+1) % images.length;
      lastIdx = idx;
      btnplay.innerText = idx + 1;
      stage.scroll({top: idx * stage.clientHeight, behavior: 'smooth'});
      if(pTimer) clearTimeout(pTimer);
      pTimer = setTimeout(turn2, 3000);
};
aud.onpause = aud.onplaying = () => mState();
stage.onclick = btnplay.onclick = () => aud.paused ? aud.play() : aud.pause();
papa.scrollIntoView(true);
</script>

朵拉 发表于 2025-2-15 17:05

@马黑黑
老师好，学生交作业，请指正{:4_190:}

梦江南 发表于 2025-2-15 17:13

欣赏点赞！好快乐的速度。{:4_199:}

马黑黑 发表于 2025-2-15 17:27

不错

小辣椒 发表于 2025-2-15 18:25

欣赏朵拉美帖，速度杠杠的{:4_199:}

红影 发表于 2025-2-15 20:16

漂亮。欣赏朵宝好帖{:4_187:}
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