you do a great job of logging your progress and ideas, making me wanna log my thoughts out tooo. i think you'd dig https://neocities.org/site/simplifier
Phones tend to cache css moreso than the web pages. I usually have to manually flush the local browser files to get changes to show.
i opened up the style.css file directly and that seemed to reload? but i did like 5 other things in the same 30 seconds so not positive that was it. cheeeers
thanks mate!