I have a page in communities that I deployed but the appearance differed such that the outlines for the checkbox and textboxes were not visible. After comparing the styling in devtools, I identified that the difference was in a file called app.css that I did not create myself.
After modifying the file in devtools, the pages output match. I therefore want to update the app.css in production to solve the issue. How can I do that given that I did not create the app.css file myself?
I am wondering whether this stylesheet comes out of the box from Salesforce.