jQuery + CSS – Activate DIV background colour and deactivate other DIV’s bg colour

This little code delivers all the magic, if you are into one page websites/apps like me, this short code will simply save you lots of time.
This code simply activates(changes the style) of an DIV that is clicked on and removes the same style applied to other DIV(active button) in case it has another active style applied to another DIV.
It can be combined with a little CSS code to display a beautiful color transition.
You can see the code running on this little jsFiddle I made: https://jsfiddle.net/cosminr/ampjtwjp/