> ## Documentation Index
> Fetch the complete documentation index at: https://hyperframes.heygen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Blur In

> An Operator Black word-level content reveal that resolves its own text from controlled blur

export const InstallCommand = ({command}) => {
  const [copied, setCopied] = React.useState(false);
  const copy = async () => {
    try {
      if (navigator.clipboard && window.isSecureContext) {
        await navigator.clipboard.writeText(command);
      } else {
        const previous = document.activeElement;
        const scratch = document.createElement("textarea");
        scratch.value = command;
        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">
        {command}
      </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="blur-in 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/blur-in.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/blur-in.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add blur-in" />

That writes one file: `compositions/components/blur-in.html`.

## Paste it into your composition

Open `compositions/components/blur-in.html` and copy what is inside into your own composition.
The file opens with a comment header that walks you through it.

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

## Variables

Every one of these has a default, so the piece works untouched. Set the ones you
want to change on the element:

| Variable | Default  | Accepts                     | What it does                                                                               |
| -------- | -------- | --------------------------- | ------------------------------------------------------------------------------------------ |
| `size`   | `52`     | 24px to 120px, step 2px     | Type size of the revealed words in pixels; the gap between words scales with it.           |
| `tone`   | `strong` | `strong`, `muted`, `accent` | Word colour: strong for headlines, muted for supporting lines, accent for the brand green. |
| `align`  | `left`   | `left`, `center`, `right`   | Horizontal alignment of the words in the frame.                                            |

Set them with `data-variable-values` on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:

```html wrap theme={null}
<div
  data-composition-id="blur-in"
  data-composition-src="compositions/components/blur-in.html"
  data-variable-values='{"size":52,"tone":"strong","align":"left"}'
></div>
```

## Source

<Accordion title={`blur-in.html`}>
  ```html theme={null}
  <!--
    Blur In - Operator Black content-focus reveal primitive.

    Paste the markup, CSS and script into a composition. Use the timeline
    integration note at the bottom as the starting point for deterministic GSAP
    animation.

    Variables. The script reads each one, falls back to the declared default on
    anything missing or unrecognised, and writes the result as a custom property
    the CSS below consumes. The timeline recipe at the bottom is untouched by
    them: it keeps resolving the same words out of the same blur.

      - size (24 to 120, default 52, in px): the type size of the words. The gap
        between words is set in em, so it scales with this.
      - tone (strong | muted | accent, default strong): word colour. strong is
        the headline text token, muted the supporting one, accent the theme
        green, so all three track light and dark frames.
      - align (left | center | right, default left): where the words sit across
        the frame.

    On every default the result is identical to the original: 52px strong words,
    left aligned.
  -->

  <div
    data-hf-ui-root
    class="hf-ui-blur-in"
    aria-label="Design systems for video"
    data-composition-variables='[
      { "id": "size", "type": "number", "role": "style", "label": "Size", "description": "Type size of the revealed words in pixels; the gap between words scales with it.", "default": 52, "min": 24, "max": 120, "step": 2, "unit": "px" },
      { "id": "tone", "type": "enum", "role": "style", "label": "Tone", "description": "Word colour: strong for headlines, muted for supporting lines, accent for the brand green.", "default": "strong", "options": [{ "value": "strong", "label": "Strong" }, { "value": "muted", "label": "Muted" }, { "value": "accent", "label": "Accent" }] },
      { "id": "align", "type": "enum", "role": "style", "label": "Align", "description": "Horizontal alignment of the words in the frame.", "default": "left", "options": [{ "value": "left", "label": "Left" }, { "value": "center", "label": "Center" }, { "value": "right", "label": "Right" }] }
    ]'
  >
    <span>Design</span>
    <span>systems</span>
    <span>for</span>
    <span>video</span>
  </div>

  <style>
    /* hf-ui:tokens:start */
    /* prettier-ignore */
    [data-hf-ui-root] {
      --_hf-ui-accent: var(--hf-ui-accent, #3ce6ac);
      --_hf-ui-action: var(--hf-ui-action, #eeeeee);
      --_hf-ui-action-contrast: var(--hf-ui-action-contrast, #111111);
      --_hf-ui-border: var(--hf-ui-border, #2a2a2a);
      --_hf-ui-border-strong: var(--hf-ui-border-strong, #383838);
      --_hf-ui-canvas: var(--hf-ui-canvas, #0a0a0a);
      --_hf-ui-control-border: var(--hf-ui-control-border, #686868);
      --_hf-ui-control-border-hover: var(--hf-ui-control-border-hover, #777777);
      --_hf-ui-control-height: var(--hf-ui-control-height, 40px);
      --_hf-ui-danger: var(--hf-ui-danger, #ff7878);
      --_hf-ui-data-1: var(--hf-ui-data-1, #3ce6ac);
      --_hf-ui-data-2: var(--hf-ui-data-2, #63a5ff);
      --_hf-ui-data-3: var(--hf-ui-data-3, #e9ab55);
      --_hf-ui-data-4: var(--hf-ui-data-4, #a78bfa);
      --_hf-ui-data-5: var(--hf-ui-data-5, #ff8a75);
      --_hf-ui-duration-drawer-enter: var(--hf-ui-duration-drawer-enter, 360ms);
      --_hf-ui-duration-drawer-exit: var(--hf-ui-duration-drawer-exit, 240ms);
      --_hf-ui-duration-modal-enter: var(--hf-ui-duration-modal-enter, 280ms);
      --_hf-ui-duration-modal-exit: var(--hf-ui-duration-modal-exit, 180ms);
      --_hf-ui-duration-overlay-enter: var(--hf-ui-duration-overlay-enter, 210ms);
      --_hf-ui-duration-overlay-exit: var(--hf-ui-duration-overlay-exit, 140ms);
      --_hf-ui-duration-press: var(--hf-ui-duration-press, 120ms);
      --_hf-ui-duration-state: var(--hf-ui-duration-state, 160ms);
      --_hf-ui-ease-enter: var(--hf-ui-ease-enter, cubic-bezier(0.32, 0.72, 0, 1));
      --_hf-ui-ease-exit: var(--hf-ui-ease-exit, cubic-bezier(0.23, 1, 0.32, 1));
      --_hf-ui-ease-response: var(--hf-ui-ease-response, cubic-bezier(0.23, 1, 0.32, 1));
      --_hf-ui-font-mono: var(--hf-ui-font-mono, ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace);
      --_hf-ui-font-sans: var(--hf-ui-font-sans, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
      --_hf-ui-hit-target: var(--hf-ui-hit-target, 44px);
      --_hf-ui-radius-control: var(--hf-ui-radius-control, 5px);
      --_hf-ui-radius-overlay: var(--hf-ui-radius-overlay, 10px);
      --_hf-ui-radius-surface: var(--hf-ui-radius-surface, 7px);
      --_hf-ui-shadow-contact: var(--hf-ui-shadow-contact, 0 8px 18px rgba(0, 0, 0, 0.38));
      --_hf-ui-shadow-inset: var(--hf-ui-shadow-inset, inset 0 1px 0 rgba(255, 255, 255, 0.035));
      --_hf-ui-shadow-modal: var(--hf-ui-shadow-modal, 0 18px 46px rgba(0, 0, 0, 0.52));
      --_hf-ui-space-1: var(--hf-ui-space-1, 4px);
      --_hf-ui-space-12: var(--hf-ui-space-12, 48px);
      --_hf-ui-space-16: var(--hf-ui-space-16, 64px);
      --_hf-ui-space-2: var(--hf-ui-space-2, 8px);
      --_hf-ui-space-3: var(--hf-ui-space-3, 12px);
      --_hf-ui-space-4: var(--hf-ui-space-4, 16px);
      --_hf-ui-space-6: var(--hf-ui-space-6, 24px);
      --_hf-ui-space-8: var(--hf-ui-space-8, 32px);
      --_hf-ui-surface: var(--hf-ui-surface, #141414);
      --_hf-ui-surface-inset: var(--hf-ui-surface-inset, #101010);
      --_hf-ui-surface-raised: var(--hf-ui-surface-raised, #1a1a1a);
      --_hf-ui-text: var(--hf-ui-text, #e5e5e5);
      --_hf-ui-text-faint: var(--hf-ui-text-faint, #7e7e7e);
      --_hf-ui-text-muted: var(--hf-ui-text-muted, #929292);
      --_hf-ui-text-strong: var(--hf-ui-text-strong, #f3f3f3);
      --_hf-ui-warning: var(--hf-ui-warning, #e9ab55);
      --_hf-ui-weight-medium: var(--hf-ui-weight-medium, 500);
      --_hf-ui-weight-regular: var(--hf-ui-weight-regular, 400);
      --_hf-ui-weight-semibold: var(--hf-ui-weight-semibold, 600);
      box-sizing: border-box;
      color-scheme: dark;
      font-family: var(--_hf-ui-font-sans);
    }
    /* prettier-ignore */
    [data-hf-ui-root] *,
    [data-hf-ui-root] *::before,
    [data-hf-ui-root] *::after {
      box-sizing: border-box;
    }
    /* prettier-ignore */
    [data-hf-theme="light"] [data-hf-ui-root],
    [data-hf-ui-root][data-hf-theme="light"] {
      --_hf-ui-accent: var(--hf-ui-accent, #087a57);
      --_hf-ui-action: var(--hf-ui-action, #171717);
      --_hf-ui-action-contrast: var(--hf-ui-action-contrast, #ffffff);
      --_hf-ui-border: var(--hf-ui-border, #e0dfdb);
      --_hf-ui-border-strong: var(--hf-ui-border-strong, #cbc9c3);
      --_hf-ui-canvas: var(--hf-ui-canvas, #f6f5f1);
      --_hf-ui-control-border: var(--hf-ui-control-border, #888888);
      --_hf-ui-control-border-hover: var(--hf-ui-control-border-hover, #6f6e68);
      --_hf-ui-danger: var(--hf-ui-danger, #a61b1b);
      --_hf-ui-data-1: var(--hf-ui-data-1, #087a57);
      --_hf-ui-data-2: var(--hf-ui-data-2, #245ea8);
      --_hf-ui-data-3: var(--hf-ui-data-3, #8a4b00);
      --_hf-ui-data-4: var(--hf-ui-data-4, #6d3fc0);
      --_hf-ui-data-5: var(--hf-ui-data-5, #a83d2d);
      --_hf-ui-shadow-contact: var(--hf-ui-shadow-contact, 0 7px 16px rgba(26, 24, 20, 0.13));
      --_hf-ui-shadow-inset: var(--hf-ui-shadow-inset, inset 0 1px 0 rgba(255, 255, 255, 0.78));
      --_hf-ui-shadow-modal: var(--hf-ui-shadow-modal, 0 18px 46px rgba(26, 24, 20, 0.18));
      --_hf-ui-surface: var(--hf-ui-surface, #ffffff);
      --_hf-ui-surface-inset: var(--hf-ui-surface-inset, #f0efeb);
      --_hf-ui-surface-raised: var(--hf-ui-surface-raised, #ffffff);
      --_hf-ui-text: var(--hf-ui-text, #171717);
      --_hf-ui-text-faint: var(--hf-ui-text-faint, #6f6e68);
      --_hf-ui-text-muted: var(--hf-ui-text-muted, #5f5f5a);
      --_hf-ui-text-strong: var(--hf-ui-text-strong, #0a0a0a);
      --_hf-ui-warning: var(--hf-ui-warning, #8a4b00);
      color-scheme: light;
    }
    /* prettier-ignore */
    [data-hf-ui-root]:focus-visible {
      outline: 2px solid var(--_hf-ui-accent);
      outline-offset: 3px;
    }
    /* prettier-ignore */
    [data-hf-rendering="true"][data-hf-ui-root],
    [data-hf-rendering="true"] [data-hf-ui-root],
    [data-hf-rendering="true"][data-hf-ui-root] *,
    [data-hf-rendering="true"] [data-hf-ui-root] *,
    [data-hf-rendering="true"][data-hf-ui-root]::before,
    [data-hf-rendering="true"][data-hf-ui-root]::after,
    [data-hf-rendering="true"] [data-hf-ui-root]::before,
    [data-hf-rendering="true"] [data-hf-ui-root]::after,
    [data-hf-rendering="true"][data-hf-ui-root] *::before,
    [data-hf-rendering="true"][data-hf-ui-root] *::after,
    [data-hf-rendering="true"] [data-hf-ui-root] *::before,
    [data-hf-rendering="true"] [data-hf-ui-root] *::after {
      animation-duration: 0s !important;
      animation-delay: 0s !important;
      transition-duration: 0s !important;
      transition-delay: 0s !important;
    }
    /* prettier-ignore */
    @media (prefers-reduced-motion: reduce) {
      [data-hf-ui-root],
      [data-hf-ui-root] *,
      [data-hf-ui-root] *::before,
      [data-hf-ui-root] *::after {
        animation-duration: 0s !important;
        animation-delay: 0s !important;
        transition-duration: 0s !important;
        transition-delay: 0s !important;
        scroll-behavior: auto !important;
      }
    }
    /* hf-ui:tokens:end */
    .hf-ui-blur-in {
      display: flex;
      flex-wrap: wrap;
      justify-content: var(--hf-blur-in-align, flex-start);
      gap: 0.28em;
      color: var(--hf-blur-in-color, var(--_hf-ui-text-strong));
      font: var(--_hf-ui-weight-semibold) 52px/1 var(--_hf-ui-font-sans);
      font-size: var(--hf-blur-in-size, 52px);
      letter-spacing: -0.02em;
    }
    .hf-ui-blur-in span {
      display: inline-block;
      filter: blur(0px);
      opacity: 1;
      will-change: opacity, transform, filter;
    }
  </style>

  <script>
    (function () {
      "use strict";

      var vars =
        window.__hyperframes && window.__hyperframes.getVariables
          ? window.__hyperframes.getVariables()
          : {};

      // Unrecognised overrides return to their declared defaults.
      function pick(table, value, fallback) {
        return Object.prototype.hasOwnProperty.call(table, value) ? value : fallback;
      }

      function clampNumber(value, min, max, fallback) {
        var n = typeof value === "number" ? value : parseFloat(value);
        if (!isFinite(n)) {
          return fallback;
        }
        return Math.min(max, Math.max(min, n));
      }

      var tones = {
        strong: "var(--_hf-ui-text-strong)",
        muted: "var(--_hf-ui-text-muted)",
        accent: "var(--_hf-ui-accent)",
      };
      var aligns = { left: "flex-start", center: "center", right: "flex-end" };

      var size = clampNumber(vars.size, 24, 120, 52);
      var tone = tones[pick(tones, vars.tone, "strong")];
      var align = aligns[pick(aligns, vars.align, "left")];

      var roots = document.querySelectorAll(".hf-ui-blur-in");
      for (var i = 0; i < roots.length; i += 1) {
        roots[i].style.setProperty("--hf-blur-in-size", size + "px");
        roots[i].style.setProperty("--hf-blur-in-color", tone);
        roots[i].style.setProperty("--hf-blur-in-align", align);
      }
    })();
  </script>

  <!--
    Timeline integration:
    tl.fromTo('.hf-ui-blur-in span', { opacity: 0, y: 8, filter: 'blur(10px)' }, { opacity: 1, y: 0, filter: 'blur(0px)', duration: 0.36, stagger: 0.04, ease: 'power3.out' }, startTime);
  -->
  ```
</Accordion>

Tagged `video-primitive` `remocn-port` `blur-in` `text-effect`.

## Related topics

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


## Related topics

- [Soft Blur In](/catalog/components/soft-blur-in.md)
- [Motion Blur](/catalog/components/motion-blur.md)
- [Blur Transitions](/catalog/blocks/transitions-blur.md)
