JSFiddle - React, Tailwind, and code Playground

HTML

<textarea name="comment_text" id="comment_text"  >Some Text here</textarea>

CSS

.Post_Description_Text{ 
    width:500px;
    height:100px;
}

JavaScript

document.getElementById('comment_text').addEventListener('keypress', function(event) {
        if (event.keyCode == 13) {
            event.preventDefault();
        }
    });