page-styler

Part 1

Clicking on the A- button should decrease the font size of the page
Clicking on the A+ button should increase the font size of the page
Clicking on the A button should reset the font size of the page back to normal

Add three more buttons to the page:
- red
- green
- blue
Add CSS classes to the stylesheet that would change the background colour when applied
Clicking on each of the above buttons should change the background-color of the page to the specified colour
- e.g. clicking on red should change the background colour to red