How do i change the text size when im in a yahoo game site?

I just downloaded windows 7 and now when I go to a yahoo game site, the top advertising and even while entering the first part of the game is normal size, but when I get into the game tables themselves, the text and pictures are really small. I have my zoom level at 150%. How can I make the text larger so I can see what I'm doing?How do i change the text size when im in a yahoo game site?
try pressing ctrl(hold) then scrool the scroller in mouse up..



if this doessn't work try workking on css editor

microsoft