JSFiddle - React, Tailwind, and code Playground
HTML
<div id="test">
<br />
<input id="foo" type="hidden" name="foo" value="">
<div>
JavaScript
var $test = $('#test')
$hiddens = $test.find(':hidden'),
$br = $test.find('br');
console.log(
$hiddens,
$br.width(),
$br.height()
);