JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="textarea-1" placeholder="Textarea 1 - CSS - resize: none"></textarea>

<br><br>
 
<textarea placeholder="Textarea 2 - HTML - draggable='false'" draggable="false"></textarea>

CSS

* {
  padding: 1rem;
}

#textarea-1 {
  resize: none;
}