Custom CSS injector

Classic SharePoint pages could be modified by changing the master page and applying new CSS styles.

Modern SharePoint pages come with far fewer styling controls, and there’s no out-of-the-box way of adding your own CSS to their pages.

The custom CSS injector allows you to do precisely that by loading a file called custom.css from the root SharePoint site’s style library which it then adds to all your modern SharePoint pages.

If you need a version of this extension that uses a different CSS file name or location, just let us know, and we’ll make it for you.