If
your mouse contains a wheel/steering wheel for the purpose of scrolling, you
can change or modify the size of font on the fly when viewing a Web page. To
do so:
Just Press and hold the Ctrl button. Then Scroll
down (or towards yourself) to enlarge font size. Later on Scroll up (or away
from yourself) to reduce size of font.
You
may find it useful to trim down font size when printing a Web page, in order
that you can fit more content on the page.