> ## Documentation Index
> Fetch the complete documentation index at: https://hyperframes-fix-nested-composition-media-inpoint.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Feathered Spotlight

> Dims the frame except a feathered ellipse; the hole's position and size are CSS variables, so helpers glide the spotlight between targets

export const InstallCommand = ({command, item}) => {
  const [copied, setCopied] = React.useState(false);
  const [tuned, setTuned] = React.useState("");
  React.useEffect(() => {
    if (!item) return;
    const read = () => {
      try {
        const raw = new URLSearchParams(window.location.search).get(`vars-${item}`);
        if (!raw) return setTuned("");
        const parsed = JSON.parse(raw);
        if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return setTuned("");
        if (Object.keys(parsed).length === 0) return setTuned("");
        setTuned(` --vars '${JSON.stringify(parsed)}'`);
      } catch {
        setTuned("");
      }
    };
    read();
    window.addEventListener("hf-vars-changed", read);
    window.addEventListener("popstate", read);
    return () => {
      window.removeEventListener("hf-vars-changed", read);
      window.removeEventListener("popstate", read);
    };
  }, [item]);
  const fullCommand = `${command}${tuned}`;
  const copy = async () => {
    try {
      if (navigator.clipboard && window.isSecureContext) {
        await navigator.clipboard.writeText(fullCommand);
      } else {
        const previous = document.activeElement;
        const scratch = document.createElement("textarea");
        scratch.value = fullCommand;
        scratch.setAttribute("readonly", "");
        scratch.style.position = "fixed";
        scratch.style.opacity = "0";
        document.body.appendChild(scratch);
        scratch.select();
        document.execCommand("copy");
        document.body.removeChild(scratch);
        previous?.focus?.();
      }
      setCopied(true);
      setTimeout(() => setCopied(false), 2000);
    } catch {}
  };
  return <div className="hf-install-command not-prose my-4 flex items-stretch overflow-hidden rounded-xl border border-zinc-200 bg-zinc-50 dark:border-zinc-800 dark:bg-zinc-900">
      <code className="flex-1 overflow-x-auto whitespace-nowrap border-r border-zinc-200 px-4 py-3 font-mono text-sm text-zinc-800 dark:border-zinc-800 dark:text-zinc-100">
        {fullCommand}
      </code>
      <button type="button" onClick={copy} data-copied={copied ? "true" : "false"} aria-label={`Copy ${command} to the clipboard`} className="hf-install-copy">
        <svg className="hf-install-copy-clipboard" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 18 18" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
          <path d="M14.25 5.25H7.25C6.14543 5.25 5.25 6.14543 5.25 7.25V14.25C5.25 15.3546 6.14543 16.25 7.25 16.25H14.25C15.3546 16.25 16.25 15.3546 16.25 14.25V7.25C16.25 6.14543 15.3546 5.25 14.25 5.25Z" />
          <path d="M2.80103 11.998L1.77203 5.07397C1.61003 3.98097 2.36403 2.96397 3.45603 2.80197L10.38 1.77297C11.313 1.63397 12.19 2.16297 12.528 3.00097" />
        </svg>
        <svg className="hf-install-copy-check" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 18 18" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
          <path d="M2.75 9.5L6.5 13.25L15.25 4.5" />
        </svg>
      </button>
      <span className="hf-install-copy-status" role="status" aria-live="polite">
        {copied ? "Copied" : ""}
      </span>
    </div>;
};

<iframe className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800" title="yt-feather-highlight preview" loading="lazy" srcDoc={`<!doctype html><html><head><meta charset="utf-8"><style>html,body{margin:0;height:100%;overflow:hidden;background:transparent}hyperframes-player{display:block;width:100%;height:100%}</style><script src="https://cdn.jsdelivr.net/npm/@hyperframes/player@0.7/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/components/yt-feather-highlight.json").then(function(r){return r.json()}).then(function(d){var p=document.createElement("hyperframes-player");p.setAttribute("srcdoc",d.html);p.setAttribute("controls","");p.setAttribute("autoplay","");p.setAttribute("loop","");p.setAttribute("muted","");p.setAttribute("poster","https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/yt-feather-highlight.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add yt-feather-highlight" item="yt-feather-highlight" />

That writes one file: `compositions/components/yt-feather-highlight.html`.

## Paste it into your composition

Open `compositions/components/yt-feather-highlight.html` and copy what is inside into your own composition.

A component has no size or duration of its own. It takes both from the composition
you paste it into.

## Source

<Accordion title={`yt-feather-highlight.html`}>
  ```html theme={null}
  <!doctype html>
  <html lang="en">
    <head>
      <meta charset="utf-8" />
      <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
      <style>
        *,
        *::before,
        *::after {
          margin: 0;
          padding: 0;
          box-sizing: border-box;
        }
        body {
          background: transparent;
          overflow: hidden;
        }
        /* ---- yt-feather-highlight --------------------------------------------
           Spotlight part of the frame: a dim layer with a feathered ellipse
           hole. The hole's position/size are CSS variables, so the helpers
           tween them directly (GSAP animates CSS vars). */
        .yt-hl {
          --yt-hl-x: 50%;
          --yt-hl-y: 50%;
          --yt-hl-rx: 22%;
          --yt-hl-ry: 26%;
          --yt-hl-dim: 0.55;

          position: absolute;
          inset: 0;
          pointer-events: none;
          opacity: 0;
          background: rgba(6, 8, 12, var(--yt-hl-dim));
          -webkit-mask-image: radial-gradient(
            ellipse var(--yt-hl-rx) var(--yt-hl-ry) at var(--yt-hl-x) var(--yt-hl-y),
            transparent 0%,
            transparent 52%,
            black 88%
          );
          mask-image: radial-gradient(
            ellipse var(--yt-hl-rx) var(--yt-hl-ry) at var(--yt-hl-x) var(--yt-hl-y),
            transparent 0%,
            transparent 52%,
            black 88%
          );
        }
        /* self-preview stand-in scene (not part of the snippet) */
        #yt-hl-scene {
          position: absolute;
          inset: 0;
          background: linear-gradient(135deg, #2a7fff 0%, #7d5cff 100%);
          display: flex;
          align-items: center;
          justify-content: space-around;
          font-family: "Inter", ui-sans-serif, sans-serif;
          font-weight: 700;
          font-size: 64px;
          color: rgba(255, 255, 255, 0.92);
        }
        #yt-hl-scene .box {
          width: 420px;
          height: 300px;
          border-radius: 24px;
          background: rgba(255, 255, 255, 0.16);
          display: flex;
          align-items: center;
          justify-content: center;
        }
      </style>
    </head>
    <body>
      <!-- Self-preview wrapper. WIRING: copy the .yt-hl CSS and drop
           <div class="yt-hl" id="yt-my-hl"></div> ABOVE the content to spotlight
           (same region). Then:

             ytHighlightIn(tl, "#yt-my-hl", 3.0, { x: "28%", y: "50%", rx: "20%", ry: "30%" });
             ytHighlightTo(tl, "#yt-my-hl", 5.0, { x: "72%" }, 0.8);   // glide to the next target
             ytHighlightOut(tl, "#yt-my-hl", 8.0);
      -->
      <div
        id="yt-hl-root"
        data-composition-id="yt-feather-highlight"
        data-start="0"
        data-duration="5"
        data-width="1920"
        data-height="1080"
      >
        <div id="yt-hl-scene">
          <div class="box">A</div>
          <div class="box">B</div>
        </div>
        <div class="yt-hl" id="yt-hl-demo"></div>
        <div
          id="yt-hl-drv"
          class="clip"
          data-start="0"
          data-duration="5"
          data-track-index="0"
          style="position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none"
        ></div>
      </div>
      <script>
        (function () {
          window.__timelines = window.__timelines || {};

          // ---- copy these helpers into the host script ----
          window.ytHighlightIn = function (tl, target, at, opts) {
            opts = opts || {};
            var vars = { opacity: 1, duration: 0.5, ease: "power2.out" };
            if (opts.x !== undefined) vars["--yt-hl-x"] = opts.x;
            if (opts.y !== undefined) vars["--yt-hl-y"] = opts.y;
            if (opts.rx !== undefined) vars["--yt-hl-rx"] = opts.rx;
            if (opts.ry !== undefined) vars["--yt-hl-ry"] = opts.ry;
            gsap.set(target, {
              "--yt-hl-x": opts.x !== undefined ? opts.x : "50%",
              "--yt-hl-y": opts.y !== undefined ? opts.y : "50%",
              "--yt-hl-rx": opts.rx !== undefined ? opts.rx : "22%",
              "--yt-hl-ry": opts.ry !== undefined ? opts.ry : "26%",
            });
            tl.to(target, { opacity: 1, duration: 0.5, ease: "power2.out" }, at);
          };
          window.ytHighlightTo = function (tl, target, at, opts, dur) {
            opts = opts || {};
            var vars = { duration: dur === undefined ? 0.8 : dur, ease: "power2.inOut" };
            if (opts.x !== undefined) vars["--yt-hl-x"] = opts.x;
            if (opts.y !== undefined) vars["--yt-hl-y"] = opts.y;
            if (opts.rx !== undefined) vars["--yt-hl-rx"] = opts.rx;
            if (opts.ry !== undefined) vars["--yt-hl-ry"] = opts.ry;
            tl.to(target, vars, at);
          };
          window.ytHighlightOut = function (tl, target, at) {
            tl.to(target, { opacity: 0, duration: 0.4, ease: "power2.in" }, at);
          };

          // Self-preview timeline: spotlight box A, glide to box B, release.
          var tl = gsap.timeline({ paused: true });
          window.ytHighlightIn(tl, "#yt-hl-demo", 0.5, { x: "26%", y: "50%", rx: "17%", ry: "24%" });
          window.ytHighlightTo(tl, "#yt-hl-demo", 2.2, { x: "74%" }, 0.9);
          window.ytHighlightOut(tl, "#yt-hl-demo", 4.2);
          tl.set("#yt-hl-root", { visibility: "hidden" }, 4.98);
          window.__timelines["yt-feather-highlight"] = tl;
        })();
      </script>
    </body>
  </html>
  ```
</Accordion>

Tagged `highlight` `spotlight` `effect` `overlay`.

## Related topics

* [Browse the complete Catalog](/catalog)
* [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
* [Build a richer composition](/go-further)
