JSFiddle - React, Tailwind, and code Playground

HTML

<html>
 <body>
  <p>I Want to select this.</p>
  <p lang="">And this.</p>
  <p lang="en">Not this.</p>
 </body>
</html>

CSS

/* selects lang="" */
p:not(:lang(\*)) {
  color: red;
  font-size: 2rem;
}

p:lang(\*) {
  color: green;
  font-style: italic;
}

JavaScript

var link = "https://jsfiddle.net/howq5pe6/1/";