If the type size is too small or too large, you can change your text settings through your browser options:

In Internet Explorer, go to View > Text size and select your desired text size setting (eg, larger, smaller).
In Firefox, go to View > Text size and increase/decrease using Ctrl and + or -

If you have a scroll wheel on your mouse, you can hold down Ctrl and scroll back or forth to increase or decrease the font size in both IE and Firefox.