JSFiddle - React, Tailwind, and code Playground

HTML

<div id="main">            
    <div id="NormalContent">
        텍스트 1
    </div>
    <div id="FeaturedContent">
        텍스트 2
    </div>
</div>

JavaScript

var content = document.getElementById('FeaturedContent');
var parent = content.parentNode;
parent.insertBefore(content, parent.firstChild);