JSFiddle - React, Tailwind, and code Playground

HTML

<li class="link" id="home" >
   <a href="admin?main=home">Home</a>
</li>
<li class="link" id="flt" >
   <a href="admin?main=flt">FLT</a>
</li>

CSS

.active{
    color:red;
}

JavaScript

$('li a').click(function(e) {   
e.preventDefault();    $(this).closest('li').addClass('active').siblings('.active').removeClass('active');
});