Launch countdown timer

Ah... this one! I love and hate this one. I really wanted to try making the flip animation of the timer with CSS and JS but I wasn't sure if I'd be able to so I tried it in my experimental files first and failed miserably. I just sat there all day trying to figure out how to sync the timing. I got frustrated after 2 days and left it as is for a few weeks. Then when I was pretty confident that I could do this, I started this challenge and it took me more than 2 days to get it exactly the way I wanted. I learned a lot about all the timing functions during this challenge.