> ## 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.

# Editorial Flash Overlay

> Finite neutral-warm light layers for a seek-safe camera-flash cut or social reveal

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="editorial-flash-overlay 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/blocks/editorial-flash-overlay.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/blocks/editorial-flash-overlay.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add editorial-flash-overlay" item="editorial-flash-overlay" />

That writes one file: `compositions/editorial-flash-overlay.html`.

## Add it to your video

It runs for 4 seconds at 1920×1080. Paste this into your composition:

```html index.html theme={null}
<div
  data-composition-id="editorial-flash-overlay"
  data-composition-src="compositions/editorial-flash-overlay.html"
  data-start="0"
  data-duration="4"
  data-track-index="1"
  data-width="1920"
  data-height="1080"
></div>
```

Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.

## Source

<Accordion title={`editorial-flash-overlay.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 {
          box-sizing: border-box;
        }

        html,
        body {
          width: 1920px;
          height: 1080px;
          margin: 0;
          overflow: hidden;
          background: transparent;
        }

        #ef-flash {
          --hf-editorial-flash-wash: 255 253 250;
          --hf-editorial-flash-warm: 255 174 105;
          --hf-editorial-flash-cool: 183 218 255;
          position: absolute;
          inset: -12%;
          overflow: hidden;
          pointer-events: none;
        }

        #ef-flash .ef-layer {
          position: absolute;
          inset: 0;
          opacity: 0;
          will-change: opacity, transform;
        }

        #ef-wash {
          background: rgb(var(--hf-editorial-flash-wash));
        }

        #ef-core {
          inset: -18%;
          background: radial-gradient(
            ellipse 68% 92% at 37% 47%,
            rgb(255 255 255) 0%,
            rgb(255 255 255 / 98%) 20%,
            rgb(var(--hf-editorial-flash-wash) / 86%) 45%,
            rgb(var(--hf-editorial-flash-warm) / 32%) 67%,
            transparent 86%
          );
          mix-blend-mode: screen;
          transform-origin: 38% 48%;
        }

        #ef-sweep {
          inset: -28%;
          background: linear-gradient(
            108deg,
            transparent 21%,
            rgb(var(--hf-editorial-flash-warm) / 10%) 38%,
            rgb(var(--hf-editorial-flash-wash) / 90%) 49%,
            rgb(255 255 255 / 98%) 53%,
            rgb(var(--hf-editorial-flash-cool) / 24%) 62%,
            transparent 79%
          );
          mix-blend-mode: screen;
        }
      </style>
    </head>
    <body>
      <div
        id="editorial-flash-overlay"
        data-composition-id="editorial-flash-overlay"
        data-start="0"
        data-duration="4"
        data-width="1920"
        data-height="1080"
      >
        <div id="ef-flash" aria-hidden="true">
          <div id="ef-wash" class="ef-layer"></div>
          <div id="ef-core" class="ef-layer" data-layout-allow-overflow></div>
          <div id="ef-sweep" class="ef-layer" data-layout-allow-overflow></div>
        </div>
      </div>

      <script>
        window.__timelines = window.__timelines || {};

        var flash = document.getElementById("ef-flash");
        var host = flash && flash.closest("[data-composition-id]");
        if (!host) throw new Error("Editorial Flash could not find its composition host");

        var compositionId = host.getAttribute("data-composition-id");
        var duration = Number(host.getAttribute("data-duration")) || 4;
        var hit = Math.max(0.12, duration * 0.58);
        var tl = gsap.timeline({ paused: true });

        tl.to({}, { duration: duration, ease: "none" }, 0);
        tl.to("#ef-wash", { opacity: 0.92, duration: 0.04, ease: "power4.in" }, hit);
        tl.fromTo(
          "#ef-core",
          { opacity: 0, scale: 0.86, rotation: -5 },
          { opacity: 1, scale: 1, rotation: -5, duration: 0.05, ease: "power4.in" },
          hit - 0.01,
        );
        tl.fromTo(
          "#ef-sweep",
          { opacity: 0, xPercent: -12, rotation: -2 },
          { opacity: 0.9, xPercent: 8, rotation: -2, duration: 0.04, ease: "power4.in" },
          hit,
        );
        tl.to("#ef-wash", { opacity: 0, duration: 0.18, ease: "power3.out" }, hit + 0.04);
        tl.to(
          "#ef-core",
          { opacity: 0, scale: 1.18, rotation: -5, duration: 0.34, ease: "power2.out" },
          hit + 0.04,
        );
        tl.to(
          "#ef-sweep",
          { opacity: 0, xPercent: 28, rotation: -2, duration: 0.3, ease: "power2.out" },
          hit + 0.04,
        );

        window.__timelines[compositionId] = tl;
      </script>
    </body>
  </html>
  ```
</Accordion>

Tagged `flash` `editorial` `social` `light` `transition` `overlay` `media-treatment-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)
