> ## 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.

# Specs Checklist

> Left-aligned specs/traits checklist over footage or a board: rows slide in staggered with an accent underline sweep; light and dark schemes

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="mk-specs-list 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/mk-specs-list.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/mk-specs-list.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add mk-specs-list" item="mk-specs-list" />

That writes one file: `compositions/mk-specs-list.html`.

## Add it to your video

It runs for 8 seconds at 1920×1080. Paste this into your composition:

```html index.html theme={null}
<div
  data-composition-id="mk-specs-list"
  data-composition-src="compositions/mk-specs-list.html"
  data-start="0"
  data-duration="8"
  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={`mk-specs-list.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;
        }
        #mk-sl-root {
          /* ---- mk tokens: override in the host to re-skin the family ---- */
          --mk-font: "Inter", -apple-system, sans-serif;
          --mk-ink: #1d1d1f;
          --mk-ink-dim: #6e6e73;
          --mk-ink-dark: #f5f5f7;
          --mk-ink-dim-dark: #a1a1a6;
          --mk-accent: #0071e3;
          --mk-accent-dark: #7d5cff;
          --mk-hairline: 2px;

          position: relative;
          width: 1920px;
          height: 1080px;
          overflow: hidden;
          background: transparent; /* overlays footage or mk-background */
        }
        #mk-sl-scrim {
          position: absolute;
          inset: 0;
          background: linear-gradient(90deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0) 62%);
          opacity: 0;
        }
        #mk-sl-col {
          position: absolute;
          display: flex;
          flex-direction: column;
        }
        .mk-sl-row {
          font-family: var(--mk-font);
          line-height: 1;
          opacity: 0;
        }
        .mk-sl-text {
          display: flex;
          align-items: baseline;
          gap: 18px;
          white-space: nowrap;
        }
        .mk-sl-label {
          font-weight: 600;
          font-size: 46px;
          letter-spacing: -0.015em;
          color: var(--mk-ink);
        }
        .mk-sl-value {
          font-weight: 400;
          font-size: 40px;
          letter-spacing: -0.01em;
          color: var(--mk-ink-dim);
        }
        .mk-sl-line {
          position: relative;
          margin-top: 22px;
          height: var(--mk-hairline);
          background: rgba(0, 0, 0, 0.1);
          border-radius: 2px;
          overflow: hidden;
        }
        .mk-sl-line-fill {
          position: absolute;
          inset: 0;
          background: var(--mk-accent);
          transform-origin: left center;
        }
        /* dark scheme: white rows for use over footage (overlay look) */
        .mk-dark .mk-sl-label {
          color: var(--mk-ink-dark);
        }
        .mk-dark .mk-sl-value {
          color: var(--mk-ink-dim-dark);
        }
        .mk-dark .mk-sl-line {
          background: rgba(255, 255, 255, 0.18);
        }
        .mk-dark .mk-sl-line-fill {
          background: var(--mk-accent-dark);
        }
      </style>
    </head>
    <body>
      <div
        id="mk-sl-root"
        data-composition-id="mk-specs-list"
        data-start="0"
        data-duration="8"
        data-width="1920"
        data-height="1080"
      >
        <div id="mk-sl-scrim"></div>
        <div id="mk-sl-col"></div>
        <div
          id="mk-sl-drv"
          class="clip"
          data-start="0"
          data-duration="8"
          data-track-index="0"
          style="position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none"
        ></div>
      </div>
      <script>
        (function () {
          window.__timelines = window.__timelines || {};

          /* ---- published parameters (inspector-style CONFIG) ---- */
          var CONFIG = {
            scheme: "light", // "light" (ink rows) | "dark" (white rows, for footage)
            rows: [
              { label: "Design", value: "Minimal, clean lines" },
              { label: "Typography", value: "Inter SemiBold" },
              { label: "Motion", value: "Restrained, no bounce" },
              { label: "Color", value: "Stage + one accent" },
              { label: "Shapes", value: "Capsules & rounded cards" },
            ],
            underline: true, // accent sweep under each row
            lineWidth: 660, // px
            scrim: 0, // 0–1 left-edge dark scrim for readability over footage
            x: 160, // column left edge
            rowGap: 44, // px between rows
            stagger: 0.18, // s between row entrances
            animationIn: true,
            animationOut: true,
          };

          var DUR = 8;
          var root = document.getElementById("mk-sl-root");
          var col = document.getElementById("mk-sl-col");
          var scrim = document.getElementById("mk-sl-scrim");

          if (CONFIG.scheme === "dark") root.classList.add("mk-dark");
          scrim.style.opacity = String(CONFIG.scrim);

          /* build rows */
          CONFIG.rows.forEach(function (r, i) {
            var row = document.createElement("div");
            row.id = "mk-sl-row-" + i;
            row.className = "mk-sl-row";
            if (i > 0) row.style.marginTop = CONFIG.rowGap + "px";

            var text = document.createElement("div");
            text.className = "mk-sl-text";
            var label = document.createElement("span");
            label.className = "mk-sl-label";
            label.textContent = r.label;
            text.appendChild(label);
            if (r.value) {
              var value = document.createElement("span");
              value.className = "mk-sl-value";
              value.textContent = r.value;
              text.appendChild(value);
            }
            row.appendChild(text);

            if (CONFIG.underline) {
              var line = document.createElement("div");
              line.className = "mk-sl-line";
              line.style.width = CONFIG.lineWidth + "px";
              var fill = document.createElement("div");
              fill.id = "mk-sl-fill-" + i;
              fill.className = "mk-sl-line-fill";
              line.appendChild(fill);
              row.appendChild(line);
            }
            col.appendChild(row);
          });

          /* center the column vertically */
          var colH =
            CONFIG.rows.length * (46 + 22 + (CONFIG.underline ? 2 : 0)) +
            (CONFIG.rows.length - 1) * CONFIG.rowGap;
          col.style.left = CONFIG.x + "px";
          col.style.top = Math.round((1080 - colH) / 2) + "px";

          var tl = gsap.timeline({ paused: true });

          CONFIG.rows.forEach(function (r, i) {
            var row = document.getElementById("mk-sl-row-" + i);
            var t0 = (CONFIG.animationIn ? 0.3 : 0) + i * CONFIG.stagger;

            if (CONFIG.animationIn) {
              gsap.set(row, { opacity: 0, x: -36 });
              tl.to(row, { opacity: 1, x: 0, duration: 0.7, ease: "power3.out" }, t0);
            } else {
              gsap.set(row, { opacity: 1 });
            }

            if (CONFIG.underline) {
              var fill = document.getElementById("mk-sl-fill-" + i);
              gsap.set(fill, { scaleX: 0 });
              tl.to(fill, { scaleX: 1, duration: 0.8, ease: "power2.inOut" }, t0 + 0.15);
            }
          });

          /* exit + hard kill */
          if (CONFIG.animationOut) {
            tl.to(col, { opacity: 0, y: -20, duration: 0.4, ease: "power2.in" }, DUR - 0.5);
            tl.to(scrim, { opacity: 0, duration: 0.4, ease: "power2.in" }, DUR - 0.5);
          }
          tl.set(root, { visibility: "hidden" }, DUR - 0.02);

          window.__timelines["mk-specs-list"] = tl;
        })();
      </script>
    </body>
  </html>
  ```
</Accordion>

Tagged `data-viz` `list` `minimal` `professional`.

## Related topics

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