JSFiddle - React, Tailwind, and code Playground

HTML

<math class="hideit"><mo>1</mo></math>

CSS

.hideit{
    display:none !important;
    visibility: hidden;
}

JavaScript

$('body').append($('<math class="hideit"><mo>2</mo></math>'));
$('math').hide();
$('math').css('display', 'none');
$('math').attr('style', 'display:none');