Thoughts of time tracker mockup

I am new to web design, HTML, CSS, and Javascript. This is a first attempt to create a time tracker. Both for manual inputs and stop watch.

So far it has no connection to a database, so it is more about the user interface, look and feel.

http://94.237.92.101:5050/

(Note that this is an HTTP and some browsers must be forced not to use https.)

Am I on the right track? Else please point me in another direction.