@ShuraimHassan said in is custom.css only for default modules?: could you show me an Example that how Can I do this? do what? make a module, add a css style to an element? I don’t know ‘responsive’. currently main.css is in pixels for 1920x1080. I have a version I converted to vh/vw. 3rd party. mm supplies font_awesome. (see the fonts folder) other than that every module can use whatever they want. no restrictions.

@sdetweil said in How to write and test CSS without going crazy..: if u install winscp or bitvise ssh client on your PC, then u can double click edit files on your pi, just like u do on windows If anyone is looking at this issue in the future and trying to do this on Mac see here: https://www.raspberrypi.org/documentation/remote-access/ssh/sshfs.md