<pclass="warning">Custom builds are not possible from a node_modules folder as we don't ship the building tools in the npm module.</p>
Animate.css is powered by npm, postcss + postcss-preset-env, which means you can create custom builds pretty easily, using future CSS with proper fallbacks.
For example, if you'll only use some of the “attention seekers” animations, simply edit the `./source/animate.css` file, delete every `@import`, and add the ones you want to use.
Now, just run `npm start` and your highly optimized build will be generated at the root of the project.
### Changing the default prefix
It's pretty straight forward to change animate's prefix on your custom build. Change the `animateConfig`'s `prefix` property in the `package.json` file and rebuild the library with `npm start`: