JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrap"><textarea>hello stack overflow world</textarea></div>

CSS

#wrap {
  position:absolute; top:10%; left:20%; right:30%; bottom:60%;
  background:#fee; border:3px double #f99;
}

textarea {
  position:absolute; padding:1em 2em;
  left:0; right:0; bottom:0; top:0;
  background:#efe;
  border:0; margin:0
}