Hmmm, I can still access it even though I can't see it by hitting the tab key until it's highlighted, then hitting enter to activate the quote. I know that it's highlighted because I know what part of the webpage is highlighted before the quote button, so when the highlight has moved off that particular part of the webpage I'm pretty sure that the quote button, although hidden, is highlighted, hitting enter then confirms if I'm right or wrong.
Oh Zio, what have you done now! lol, I've lost my grey background and all the links have switched sides : (