JSFiddle - React, Tailwind, and code Playground

HTML

<div class="editable">I am editable text.<br/>Could you <span style="font-weight: bold; font-style: italic;">tell</span>?</div>

CSS

.editable{
    margin-top: 5px;
    margin-left: 5px;
    height: 200px;
    width: 350px;
    cursor: text;
    border: 1px solid #999; 
    background: white;
    box-shadow: inset 0px 1px 4px #666;
    padding: 10px;
}