Custom CSS Support on Android (Repost)

I am reposting this request (originally from a different user). Can we have CSS support for Android so that we can make advanced adjustments to the display? On desktop, I modified things so that there wasn't so much margin after a paragraph but I have no way of doing this on Android (not sure if the feature is on iOS). Ideally, what would be great is to sync settings to the cloud, where we store our notes, so that desktop preferences carry over to mobile.