Mobile first responsive using Tailwind CSS(Purged css)

This is the first challenge I am attempting, also I am a new tailwind user, basically a enthusiast, hence I tried using it. I have enabled purging, with resulting css of 16KB only. Please have a look at the html, can it better structured? Any suggestion here? Also I used the common classes from Tailwind css what I knew of, is there any better choices? I havent used @apply to isolate the classes to separate style.css file since this is only my first attempt. Please suggest.

Thanks