hyperframes/docs/catalog/blocks/yt-lower-third.mdx

---
title: "YouTube Lower Third"
description: "Animated YouTube subscribe lower third with avatar and channel info"
---

import { InstallCommand } from "/snippets/install-command.jsx";

## Install

<InstallCommand command="npx hyperframes add yt-lower-third" item="yt-lower-third" />

That writes `compositions/yt-lower-third.html`, plus 1 supporting file under `assets/`.

<iframe
  className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800"
  title="yt-lower-third 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@latest/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/blocks/yt-lower-third.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/yt-lower-third.png");document.body.appendChild(p)});<\/script></body></html>`}
/>

## Source

<Accordion title="yt-lower-third.html">

```html
<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;700&display=block"
      rel="stylesheet"
    />
    <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      html,
      body {
        background: transparent;
        overflow: hidden;
      }
      body {
        width: 1920px;
        height: 1080px;
        font-family: "DM Sans", sans-serif;
      }

      [data-composition-id="yt-lower-third"] .lower-third {
        position: absolute;
        bottom: 80px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        align-items: center;
        gap: 28px;
        background: #ffffff;
        border-radius: 60px;
        padding: 20px 32px 20px 20px;
        box-shadow: 0 6px 32px rgba(0, 0, 0, 0.14);
      }

      [data-composition-id="yt-lower-third"] .avatar {
        width: 96px;
        height: 96px;
        border-radius: 50%;
        object-fit: cover;
        flex-shrink: 0;
      }

      [data-composition-id="yt-lower-third"] .channel-info {
        display: flex;
        flex-direction: column;
        gap: 2px;
        margin-right: 20px;
      }

      [data-composition-id="yt-lower-third"] .channel-name {
        font-size: 34px;
        font-weight: 700;
        color: #0f0f0f;
        line-height: 1.3;
        letter-spacing: -0.01em;
      }

      [data-composition-id="yt-lower-third"] .subscriber-count {
        font-size: 22px;
        font-weight: 400;
        color: #606060;
        line-height: 1.3;
      }

      [data-composition-id="yt-lower-third"] .subscribe-btn {
        position: relative;
        width: 220px;
        height: 68px;
        border-radius: 34px;
        background: #0f0f0f;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
      }

      [data-composition-id="yt-lower-third"] .btn-text {
        position: absolute;
        font-family: "DM Sans", sans-serif;
        font-size: 24px;
        font-weight: 700;
        color: #ffffff;
        letter-spacing: 0.02em;
        white-space: nowrap;
      }

      [data-composition-id="yt-lower-third"] .btn-text-subscribe {
        opacity: 1;
      }

      [data-composition-id="yt-lower-third"] .btn-text-subscribed {
        opacity: 0;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      [data-composition-id="yt-lower-third"] .check-icon {
        display: inline-block;
        width: 24px;
        height: 24px;
      }

      [data-composition-id="yt-lower-third"] .check-icon svg {
        width: 24px;
        height: 24px;
        display: block;
      }
    </style>
  </head>
  <body>
    <div
      id="root"
      data-composition-id="yt-lower-third"
      data-width="1920"
      data-height="1080"
      data-start="0"
      data-duration="4.5"
    >
      <div
        id="card"
        class="clip lower-third"
        data-start="0"
        data-duration="4.5"
        data-track-index="0"
      >
        <img class="avatar" src="assets/avatar.jpg" alt="HeyGen" crossorigin="anonymous" />
        <div class="channel-info">
          <div class="channel-name">HeyGen</div>
          <div class="subscriber-count">82.2K subscribers</div>
        </div>
        <div id="subscribe-btn" class="subscribe-btn">
          <span id="btn-subscribe" class="btn-text btn-text-subscribe">Subscribe</span>
          <span id="btn-subscribed" class="btn-text btn-text-subscribed">
            <span class="check-icon"
              ><svg
                viewBox="0 0 24 24"
                fill="none"
                stroke="#fff"
                stroke-width="2.5"
                stroke-linecap="round"
                stroke-linejoin="round"
              >
                <polyline points="20 6 9 17 4 12"></polyline></svg
            ></span>
            Subscribed
          </span>
        </div>
      </div>
    </div>

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

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

      var card = document.getElementById("card");
      var btn = document.getElementById("subscribe-btn");
      var textSub = document.getElementById("btn-subscribe");
      var textSubd = document.getElementById("btn-subscribed");

      // Slide in from bottom
      gsap.set(card, { y: 300, opacity: 0 });

      tl.to(
        card,
        {
          y: 0,
          opacity: 1,
          duration: 0.5,
          ease: "power3.out",
        },
        0.1,
      );

      // Hold, then button press-in
      tl.to(
        btn,
        {
          scale: 0.92,
          duration: 0.15,
          ease: "power2.out",
        },
        1.0,
      );

      // Button release with spring bounce + text swap
      tl.to(
        btn,
        {
          scale: 1,
          duration: 0.4,
          ease: "elastic.out(1, 0.4)",
        },
        1.15,
      );

      // Fade out "Subscribe", fade in "Subscribed"
      tl.to(
        textSub,
        {
          opacity: 0,
          duration: 0.08,
          ease: "none",
        },
        1.15,
      );

      tl.to(
        textSubd,
        {
          opacity: 1,
          duration: 0.08,
          ease: "none",
        },
        1.18,
      );

      // Slide out to bottom (inverse of entrance)
      tl.to(
        card,
        {
          y: 300,
          opacity: 0,
          duration: 0.25,
          ease: "power3.in",
        },
        3.8,
      );

      window.__timelines["yt-lower-third"] = tl;
    </script>
  </body>
</html>
```

</Accordion>

## Usage

After installing, add the block to your host composition:

```html
<div data-composition-id="yt-lower-third" data-composition-src="compositions/yt-lower-third.html" data-start="0" data-duration="4.5" data-track-index="1" data-width="1920" data-height="1080"></div>
```

{/* hf:generated-footer */}

Tagged `social` `overlay` `youtube`.

## Related topics

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