People do not really like to put their hands away from keyboard while concentrating in typing but they still been forced to use the mouse to click on something. If you learn the available shortcut keys or create new ones for frequently used commands, you can work around these obstacle by saving quite lots of times.
First, you may notice some webpages have really small font size to read on, and the slowest way to zoom in or out of font size quite not efficiency while doing work like the image shows below:-


This is the original font size setting:-

Here is the quickest way to increase/decrease the font size using the scroll of the mouse wheel. Just hold the CTRL key and scroll the wheel up for decreasing and down for increasing.

Some other handy keyboard shortcuts

F1 – Help
F5 – Refresh page
F11 – Fullscreen
TAB – Jump to next focus point.
Enter – Submit/Go<

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