JSFiddle - React, Tailwind, and code Playground

HTML

<div class="sidebar1">
    <a href="../horizontal-menu.html?expandable=1" class="">link</a>
    <a href="../fiddle" class="">link</a>
</div>

CSS

.red{
    color:red;
}

JavaScript

$( document ).ready(function() {
    
    var pageTitle = window.location.href;
  $('.sidebar1 a').each(function () {
            var cleanurl = $(this).attr('href').toLowerCase().replace("..\/","");
            if (pageTitle.toLocaleLowerCase().match(cleanurl))
                $(this).addClass('red');// // if you want to style a specific a
                
         });
});