JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
<div id="header"></div>
<div id="footer"></div>
<div id="content"></div>
<div id="one"></div>
<div id="two"></div>
</div>

JavaScript

$$('#wrapper > div[id="header"]').each(function(e){ 
    console.log('2.' + e.id);
});