JSFiddle - React, Tailwind, and code Playground

HTML

<main>
  <div>aaa <span>bbb</span> <p>ccc</p></div>
</main>

CSS

main::first-line {
  color: blue;
  text-decoration: underline;
}
div {
  display: contents;
  color: green;
  letter-spacing: 10px;
}
span {
  display: contents;
  color: red;
}