a css question for tabcontainer

[JohnE]

I have a tab container on a page that has different controls on the the
different tabpanels. I also have some css for the different panels. But my
issue is the font when I have a textbox on the panel that is set to
multiline. The font is not the same as the other controls. I remove the
multiline textmode and the font returns to the same as the other controls.
Is this a glitch to the control or is there some css that I could use for the
entire page that has the tabcontainer so the font is consistent throughout?
Thanks.
John