JSFiddle - React, Tailwind, and code Playground

HTML

<div class="content-editable" form-textarea font-face-frank
    placeholder="Type something here..." contenteditable="true"
    ng-model="form.message" ng-class="form.fontName" strip-br="true" required></div>

CSS

.content-editable {
    outline-width: 0;
    min-height: 1em;
    max-height: 300px;
    line-height: 1em;
    overflow-y: scroll;
    font-size: 44px;
    padding: 10px;
    border: 1px solid cyan;
}

JavaScript

document.getElementsByClassName('content-editable')[0].innerHTML=document.getElementsByClassName('content-editable')[0].getAttribute('placeholder');