third font in font family is significantly larger

Question

For my website I have chosen to use some pretty obscure fonts in my font family. The most well known font (3rd in family) is Century Gothic, which most computers have.

Answer 1

If you compose to a vertical rhythm this shouldn't really pose much of a problem.

http://24ways.org/2006/compose-to-a-vertical-rhythm

This is totally overkill, but you could use http://www.lalit.org/lab/javascript-css-font-detect and create a conditional.

I really suggest using something like the first method (vertical rhythm) to make then entire issue irrelevant if at all possible. You'll sleep much better at night.