JSFiddle - React, Tailwind, and code Playground

HTML

<div>
  <p>Paragraph 1 in the div.</p>
  <p>Paragraph 2 in the div.</p>
  <p>Paragraph 3. Not in a div.</p>
  <p>Paragraph 4. Not in a div.</p>
</div>

CSS

div>p:first-child {
  background-color: yellow;
}