Dashboard Temp Share Shortlinks Frames API

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index.html
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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <title>Responsive Parallax Image Gallery</title>
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="stylesheet" type="text/css" media="screen" href="style.css" />
  </head>

  <body>
    <main class="gallery">
      <div class="gallery-track">
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/kL3u4Tqfn1s" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/yVUQlyRlJSw" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/7H77FWkK_x4" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/r7YZXv5f5cc" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/KQ75n3P8EJA" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/psdV2Rl-GvU" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/gGIJGnpMZfo" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/j7AMlh2MMHc" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/U3cctUBucn0" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/bOvvgayPCyI" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/psdV2Rl-GvU" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/K-94QEMm3vo" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/j7AMlh2MMHc" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/D68ADLeMh5Q" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/BzuUDHCi_vo" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/ua2vQnsn_x0" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/TGOGwgPR1_Q" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/oqStl2L5oxI" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/XazoYQRnDZo" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/YfgE8WCcZsQ" />
          </div>
        </div>
        <div class="card">
          <div class="card-image-wrapper">
            <img src="https://source.unsplash.com/NpMWgJ1_Ohk" />
          </div>
        </div>
      </div>
    </main>

    <script>
      const gallery = document.querySelector(".gallery");
      const track = document.querySelector(".gallery-track");
      const cards = document.querySelectorAll(".card");
      const easing = 0.05;
      let startY = 0;
      let endY = 0;
      let raf;

      const lerp = (start, end, t) => start * (1 - t) + end * t;

      function updateScroll() {
        startY = lerp(startY, endY, easing);
        gallery.style.height = `${track.clientHeight}px`;
        track.style.transform = `translateY(-${startY}px)`;
        activateParallax();
        raf = requestAnimationFrame(updateScroll);
        if (startY.toFixed(1) === window.scrollY.toFixed(1))
          cancelAnimationFrame(raf);
      }

      function startScroll() {
        endY = window.scrollY;
        cancelAnimationFrame(raf);
        raf = requestAnimationFrame(updateScroll);
      }

      function parallax(card) {
        const wrapper = card.querySelector(".card-image-wrapper");
        const diff = card.offsetHeight - wrapper.offsetHeight;
        const { top } = card.getBoundingClientRect();
        const progress = top / window.innerHeight;
        const yPos = diff * progress;
        wrapper.style.transform = `translateY(${yPos}px)`;
      }

      const activateParallax = () => cards.forEach(parallax);

      function init() {
        activateParallax();
        startScroll();
      }

      window.addEventListener("load", updateScroll, false);
      window.addEventListener("scroll", init, false);
      window.addEventListener("resize", updateScroll, false);
    </script>
  </body>
</html>

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