JSFiddle - React, Tailwind, and code Playground

HTML

<textarea contenteditable="true">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt...</textarea>
<div contenteditable="true">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt...</div>

CSS

div, textarea {
    font-family: Courier;
    font-size:14px;
    margin:0;
    padding:0;
    outline:0;
    resize:none;
    border: 1px solid black;
    height: 80px;
    overflow: hidden;
    width: 267px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    white-space: pre-wrap;
}
div {
    -moz-padding-end: 2px;
    -moz-padding-start: 2px;
}