For consistant type size across browsers and platforms, should I be using ems. I’m using pixels and at the moment my site looks okay in Firefox on Mac, the type is a little larger in Safari on Mac… but on a PC in Internet Explorer the type is looking a little small.
I tend to use ems, which is easier to scale when using media queries for responsive designs. But it your not worried about that (you should read up on responsive design though). The biggest issue that I find people having is getting the concept of ems and inheritance.