This combines the two modules, JS Injector and CSS Injector, into a single module for simplicity. As described from those modules, this functions the same. This module is definitely not a replacement for full-fledged theming, but it provides site administrators with a quick and easy way of tweaking things without diving into full-fledged theme hacking. CSS Injector Allows administrators to inject CSS into the page output based on configurable rules. It's useful for adding simple CSS tweaks without modifying a site's official theme.