@Miyukiwork and team
When is released opera mini 21 and 22 for android 2.3 ?
And , I think the same :
Keyboard still covering most of sign in forms, I mentioned this in Opera Mini 21 topic. http://imgur.com/a/hunDy 1st screenshot is Opera Mini, 2nd is Lightning browser. See how Lightning browser pushes sign in form above keyboard so that you can actually see what you are writing.