JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="cb-toggle">Toggle This</a>

CSS

.cb-toggle {
    background-color: gray;
    color: #fff;
}
.cb-toggle:hover {
    background-color: orange;
}
.cb-toggle.selected {
    background-color: blue;
}

JavaScript

$('.cb-toggle').click(function() {
   $(this).toggleClass('selected');
});