JSFiddle - React, Tailwind, and code Playground

by DemonTut

HTML

<pre class="demo" contenteditable placeholder="Сюда можно писать"></pre>

SCSS

html, body {
  min-height: 100px;
}

.demo {
    width: 200px;
    max-width: 100%;
    min-height: 1em;
    border: 1px solid #0c00ff;
    border-radius: 5px;
    font-family: sans-serif;
    line-height: 1.2;
    font-size: 1em;
    padding: .3em .5em;
}

[contenteditable]:empty:before {
    //display: block;
    color: #999;
    content: attr(placeholder);
}