My Pomodoro, any advise?

Pomodoro https://codepen.io/teaumate/full/wzyPWv/

a bit sparse but ok, Seems a bit flaky round the edges functionality wise … .start/stop and reset don’t seem to work consistently.
It’s a bit odd having the increment on the left and decrement on the right, but fair enough it’s your design.
How about modelling the timer after a clock face? (i.e. starting at 12 oclock)
Sorry just read back through my reply and it’s all a bit negative. You got it up and running which is more than a lot of people manage - well done!

Well i didn’t post to be praised so your comments are very welcome, thx nikrb.