> ## 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.

# Tabs Slide Indicator

> A pill indicator transition that slides between active tabs

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="tabs-slide-indicator 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/tabs-slide-indicator.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/tabs-slide-indicator.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add tabs-slide-indicator" />

That writes one file: `compositions/components/tabs-slide-indicator.html`.

## 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                                                                                                 |
| -------- | ---------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| `accent` | `ink`            | `ink`, `green`, `blue`, `violet` | Fill of the sliding pill. ink is literal; the rest ride the composition theme tokens.                        |
| `width`  | `standard`       | `compact`, `standard`, `wide`    | Width of one tab. The slide the timeline drives is scaled to match, so the pill still lands on the next tab. |
| `shape`  | `pill`           | `pill`, `rounded`, `square`      | Corner radius of the track and the pill.                                                                     |
| `labels` | `Plan,Debug,Ask` | string                           | The tab names, separated by commas. Two or more names rebuild the row.                                       |

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="tabs-slide-indicator"
  data-composition-src="compositions/components/tabs-slide-indicator.html"
  data-variable-values='{"accent":"ink","width":"standard","shape":"pill","labels":"Plan,Debug,Ask"}'
></div>
```

## Source

<Accordion title={`tabs-slide-indicator.html`}>
  ```html theme={null}
  <!--
    Tabs Slide Indicator - transitions.dev-inspired primitive for HyperFrames.

    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 sliding the pill one tab to the right, and these decide how
    wide that tab is, what the pill looks like and what the tabs say.

      - accent (ink | green | blue | violet, default ink): fill of the sliding
        pill. ink is a literal near-black; the other three ride the composition's
        own brand, accent and accent-2 tokens and fall back to that same ink when
        the composition declares none. The labels sitting on it stay white, so all
        four keep the active tab readable.
      - width (compact | standard | wide, default standard): width of one tab,
        72px, 86px or 104px. The slide the timeline drives is scaled by the same
        ratio, so the pill still lands exactly on the next tab rather than
        stopping short or overshooting it.
      - shape (pill | rounded | square, default pill): corner radius of the track
        and the pill, 999px, 12px or 4px.
      - labels (text, default "Plan,Debug,Ask"): the tab names, separated by
        commas. Two or more names rebuild the row, one name or none leaves the
        authored markup alone, since a single tab has nowhere to slide to.

    On every default the result is identical to the original: three 86px tabs in
    a light pill track, a near-black pill sliding from the first to the second.
  -->

  <div
    class="hf-transition-tabs-slide-indicator"
    data-composition-variables='[
      { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Fill of the sliding pill. ink is literal; the rest ride the composition theme tokens.", "default": "ink", "options": [{ "value": "ink", "label": "Ink" }, { "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
      { "id": "width", "type": "enum", "role": "layout", "label": "Tab width", "description": "Width of one tab. The slide the timeline drives is scaled to match, so the pill still lands on the next tab.", "default": "standard", "options": [{ "value": "compact", "label": "Compact" }, { "value": "standard", "label": "Standard" }, { "value": "wide", "label": "Wide" }] },
      { "id": "shape", "type": "enum", "role": "style", "label": "Shape", "description": "Corner radius of the track and the pill.", "default": "pill", "options": [{ "value": "pill", "label": "Pill" }, { "value": "rounded", "label": "Rounded" }, { "value": "square", "label": "Square" }] },
      { "id": "labels", "type": "string", "role": "content", "label": "Labels", "description": "The tab names, separated by commas. Two or more names rebuild the row.", "default": "Plan,Debug,Ask" }
    ]'
  >
    <span class="indicator"></span><button>Plan</button><button>Debug</button><button>Ask</button>
  </div>

  <style>
    .hf-transition-tabs-slide-indicator {
      --hf-tab-x: 0px;
      position: relative;
      display: inline-grid;
      grid-template-columns: repeat(var(--hf-tab-count, 3), var(--hf-tab-width, 86px));
      padding: 4px;
      border: 1px solid #e4e4e7;
      border-radius: var(--hf-tab-radius, 999px);
      background: #f4f4f5;
      font-family: Inter, system-ui, sans-serif;
    }
    .hf-transition-tabs-slide-indicator .indicator {
      position: absolute;
      top: 4px;
      left: 4px;
      width: var(--hf-tab-width, 86px);
      height: 36px;
      border-radius: var(--hf-tab-radius, 999px);
      background: var(--hf-tab-fill, #18181b);
      transform: translateX(calc(var(--hf-tab-x) * var(--hf-tab-step, 1)));
      box-shadow: 0 12px 26px rgba(0, 0, 0, 0.18);
    }
    .hf-transition-tabs-slide-indicator button {
      position: relative;
      z-index: 1;
      height: 36px;
      border: 0;
      background: transparent;
      color: #71717a;
      font-weight: 850;
    }
    .hf-transition-tabs-slide-indicator button:nth-of-type(2) {
      color: #fff;
    }
  </style>

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

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

      // Unrecognised overrides return to their declared defaults.
      // The pill is the one accent-carrying element here, so the three chromatic
      // options ride the composition's own tokens and fall back to ink.
      var accents = {
        ink: "#18181b",
        green: "var(--brand, #18181b)",
        blue: "var(--accent, #18181b)",
        violet: "var(--accent-2, #18181b)",
      };
      var widths = { compact: 72, standard: 86, wide: 104 };
      var shapes = { pill: "999px", rounded: "12px", square: "4px" };

      function pick(table, value, fallback) {
        return Object.prototype.hasOwnProperty.call(table, value) ? value : fallback;
      }

      var accent = accents[pick(accents, vars.accent, "ink")];
      var width = widths[pick(widths, vars.width, "standard")];
      var radius = shapes[pick(shapes, vars.shape, "pill")];
      var labels =
        typeof vars.labels === "string"
          ? vars.labels.split(",").map(function (part) {
              return part.trim();
            })
          : [];
      labels = labels.filter(function (part) {
        return part.length > 0;
      });

      var roots = document.querySelectorAll(".hf-transition-tabs-slide-indicator");
      for (var i = 0; i < roots.length; i += 1) {
        roots[i].style.setProperty("--hf-tab-fill", accent);
        roots[i].style.setProperty("--hf-tab-width", width + "px");
        // The timeline slides the pill by one standard tab, so scale that slide
        // to whatever a tab is actually worth here.
        roots[i].style.setProperty("--hf-tab-step", String(width / 86));
        roots[i].style.setProperty("--hf-tab-radius", radius);
        // A single tab has nowhere to slide to, so it is left as authored.
        if (labels.length > 1) {
          var old = roots[i].querySelectorAll("button");
          for (var j = 0; j < old.length; j += 1) {
            old[j].parentNode.removeChild(old[j]);
          }
          for (var k = 0; k < labels.length; k += 1) {
            var button = document.createElement("button");
            button.textContent = labels[k];
            roots[i].appendChild(button);
          }
          roots[i].style.setProperty("--hf-tab-count", String(labels.length));
        }
      }
    })();
  </script>

  <!--
    Timeline integration:
    tl.fromTo('.hf-transition-tabs-slide-indicator .indicator', { '--hf-tab-x': '0px' }, { '--hf-tab-x': '86px', duration: 0.42, ease: 'power3.inOut' }, startTime);
  -->
  ```
</Accordion>

## Usage

Open `compositions/components/tabs-slide-indicator.html` and paste its contents into your composition. See the comment header in the file for detailed instructions.

Tagged `transition-primitive` `transitions-dev-port` `tabs` `indicator`.

## 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

- [Touch Indicator](/catalog/components/touch-indicator.md)
- [Create an interactive presentation](/guides/slideshow.md)
- [Build a slideshow](/studio/slideshows.md)
