JSFiddle - React, Tailwind, and code Playground

HTML

<div id="car2" style="display:none;"></div>

<form><input type="submit" /></form>

JavaScript

$('form').on('submit', function () {
    if ($('#car2').css('display') == 'none') {
        alert('car 2 is hidden');
    }
    return false;
});