The default module.css file is located in: mods/com.phenixidentity~phenix-prism-enroll-oath~<version>/web/css. This file should not be changed since it gets overwritten during an update of the server. The file, however, can be copied and placed in the overlay location: overlay/activatepocketpass/css

When doing so, the overlay file will "replace" the original file.

The recommended way to change/override css is to find the customer.css file in: overlay/activatepocketpass/css folder and add the customisation there. This file is loaded after the original file and only the configured css values will override the default css values.

All changes in css files will require a restart of the service

NOTE for PAS 5.0 and later: 
- Starting from PAS 5.0 version and up, the recommended way to change/override is through using "modsoverlay" folder instead of "overlay" folder. See here for more info
- Instructions above, and below, apply but by using same paths in the modsoverlay folder.