JSFiddle - React, Tailwind, and code Playground

HTML

<div id="contentPanelHeading" class="div">
    <label id="originalNameLabel" class="label">ThisIsAReallyLongBlockOfTextThatWillOverflowTheParentDiv</label>
</div>

CSS

.div
{
    background-color: red;
    width: 100px;
    height: 100px;
}
.label
{
   word-wrap: break-word; 
}