JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
<li>first Li Item</li>
<li>SeCOND li Item</li>
</ul>
<p>
First PitEm is herE.
</p>

CSS

li, 
p{
 text-transform: lowercase; 
}
li::first-letter,
p::first-letter{
  text-transform: uppercase;
}