Got a white bar showing up at the bottom of my Anki mobile app while reviewing cards. Not sure why it’s there. Already tried checking CSS and clearing the app cache. No dice.
Can’t see this line on the note type editor which sucks to debug, in your case this line is not being loaded (tested on macOS, in Android the line don’t appear)
Ok, I reproduced it when scrolling down. It appears to be caused by your use of a background on the body element. The body has a margin, so the white area is the html element. If you style that instead, I suspect it will resolve the issue.