Show HN: I made a shareable timer as beginner, waiting for your feedbacks

Hi there, nice start!

* Some pause, stop, reset buttons would be nice - but maybe you're more minimalist than I am.

* You could use the Notifications.js API to alert the user instead of just a noise.

On the code side, I would try to format the positions correctly in css instead of using all those <br/>'s.

(Personal preference here), I wouldn't spread the code so thin into so many components/css files too early in the project. In my experience, this makes the structure more rigid when you should maximize flexibility, so you can iterate as quickly as possible.

The text is pretty huge on my phone screen here. I can see POM and CUS. When I tap POM I get a "not found" message. Then I see the number 24 and nothing happens. Hope that helps, good luck.