JSFiddle - React, Tailwind, and code Playground

by Luis Manuel

HTML

<body>
    <div class="filter-container"></div>
</body>

JavaScript

var prefixMarkUp = '<ul class="filter-elements hidden" >'+
                          '<li><a href="#" class="current">LINK</a></li>'+
                        '</ul>';

if($('body').has('.filter-container').length){
    if(!$('body').hasClass('filter-elements')){
        $('body').before(prefixMarkUp)
    }
}