A simple game inspired by a similar android app.
- the prompt left/right will appear in random direction
- start game on press of Enter key in addition to start game button
- the colours would randomly change after each click
- sound will be played on click and error
- fix css to allign perfectly and make responsive
- save the high score in browser cache
- add timer, and make player loose if they dont click on time
- add difficulty level options: optional top/bottom and timer levels