JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
  <div>block</div>
  <div>block</div>
 
  <div>
  <div class="child">block</div>
  </div>
  <div>block</div>
  <div class="child">block</div>
  <div>block</div>
  <div class="child">block</div>
</div>

CSS

.parent div:nth-child(odd) .child{
  color:red;
}