I am currently editing my screen.css file to make changes to my theme. I have changed the .css code on my laptop und uploaded the new .css to via FTP (overwriting my old file). However after a few tries and several modifications I have noticed that no matter what I change in the .css file, it wouldn't take any effect. so I deleted the .css file on the server completely to see what would happen, but yet again my website would show up completely unchanged. Is there anything important I am missing out?
the root is core/css/screen.css
I am getting really frustrated.