Masteries Mess-up.

So I recently tryed to play zed and during my creation of my masteries I moved the game screen to the side so i could split-screen with the internet but i couldn't close it after i opened it. The "close" or "x" is past my screen and i cant use "Esc" to exit the masteries page.

It might be just me or many others when they are trying to make a masteries page. and only way to exit is to close the client

image attached shows that i cant close because its past my screen. :'(

tldr: make "esc" be able to close masterises (might be a bug i don't know)