Here's how:
- While viewing any web page, press and hold the Ctrl key (on your keyboard) while pushing the scroll wheel (on your mouse) away from you. Pull the wheel towards you to zoom out.
Another helpful hint submitted by Cook Manwiller:
Use
Control and "+", (plus) to increase size
Control and " - " (minus) to decrease size
and
Control and " 0 " (zero) to return to normal size.