How do I change the font size on my computer?

I was browsing the internet and my cat jumped on my computer and I'm not sure what he pressed, but he made the font huge! How do I change it back to the way it was?How do I change the font size on my computer?
On your toolbar click View -%26gt; Text Size -%26gt; Increase/Normal/Decrease

or,

Ctrl++ (hold the control key and hit the plus key) makes the text larger.

Ctrl+- (hold the control key and hit the minus key) makes the text smaller.

Ctrl+0 (hold the control key and hit zero) makes the text normal size.

Ctrl+scroll mouse wheel