If you find yourself in the position of something on a particular webpage appearing too large or too small, you can zoom in or out on the page by one of the following methods:
To zoom in:
Hold the control button (ctrl) on your keyboard, and while continuing to hold the control button, push the plus ( + ) button on your keyboard.
To zoom out:
Hold the control button (ctrl) on your keyboard, and while continuing to hold the control button, push the minus ( - ) button on your keyboard.
This trick should work in all browsers, and is very easy to do.