The library

Curated, not a catalog dump.

Every signature component, built for a real site. Filter, preview live, copy in React or Vue.

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Landmark Kits

Depth, not breadth.

A deep, stand-alone collection built around one system. The first Kit is Reveal - preloaders and hero sections, one mixable system, WebGL and GSAP. React, Vue, HTML / CSS / JS. Not for Webflow.

See the Reveal Kit

Concepts, patterns, tools

Learn the vocabulary.

Definitions and examples for the GSAP and animation concepts behind production motion. Free, citable, and cross-linked with the components that use each idea.

Open concepts

Circle Fill Button

A circle of colour that grows out from wherever your cursor lands on the button, always taking the same time to fill whether you come in from the middle or the edge. Good for hero buttons.

Guides

One of 65 GSAP components in React, Vue and HTML.

The full source for Circle Fill Button is locked.

On mobile

Take the free components with you.

Text Reveal
Text Reveal
Accordion
Accordion
Dual Scramble
Dual Scramble
Multi-Level Drawer Menu
Multi-Level Drawer Menu
Image Fly-In
Image Fly-In

In React, Vue and HTML, in your inbox, ready when you're back at your desk.

Built for drinkbodyarmor.com.

Where this component came from.

We built it for the drinkbodyarmor.com site and folded it back into the library when the project went live. A Good Fella piece, refined for reuse.

Built for drinkbodyarmor.com.
Required

What you'll need.

Install

  • GSAP

Concepts

Attributes, tips, use cases and full code are part of access.

The preview and provenance stay public. Tune-it docs, the data-anm-* attribute table, real-world use cases and the copy-ready code unlock the moment you sign in.

Frequently asked

Does Circle Fill Button work with React and Vue?
Circle Fill Button ships as React (Next.js included), Vue 3 (Nuxt included), plain HTML/CSS/JS - the same animation in each format. The React version uses the official useGSAP hook with cleanup handled; the Vue version is a real single-file component with <script setup>.
Do I need GSAP to use Circle Fill Button?
Yes. Circle Fill Button is built on GSAP directly, and GSAP has been 100% free for commercial use, including every plugin, since version 3.13. The component page lists exactly what to install.
Can I customize Circle Fill Button without editing code?
Circle Fill Button exposes 3 tunable controls in the Customize panel on this page - drag the values, watch the live preview respond, and the code you copy carries your exact settings.
Is Circle Fill Button free?
Circle Fill Button is part of the Annnimate Library, a paid subscription (from EUR 249/year). The live preview and customization run free on this page; the paste-ready code is for members.
Can I use Circle Fill Button in client projects?
Yes. The Annnimate license covers commercial and client work - ship Circle Fill Button on as many projects as you build, with no attribution required.
Does Circle Fill Button respect prefers-reduced-motion?
Yes. Every Annnimate component handles prefers-reduced-motion via gsap.matchMedia, so users who opt out of motion get an effectively instant, readable state.