Is there a maximum number of characters allowed to use inside the <style></style>. My mobile media queries weren't respected by Gmail app. Stripped down my media queries started working. I know Gmail is strict, so I removed everything and started to build up my css again bit by bit. At a certain point my Gmail media query broke. I tried to pinpont to attribute that was causing it. But there was no mistake. I reached the limit. Changing my first suspect with an other attribute didn't make it work. Deleting a couple of attributes and placing one back that went wrong at first, made it work again.
Breaking occured around 1000 lines of css code