JSFiddle - React, Tailwind, and code Playground

HTML

<div class='links'>
   <a href='#'>link 1</a>
   <a href='#'>link 2</a>
   <a href='#'>link 3</a>
</div>

CSS

a {
  color: black;
}
.selected {
  color: blue;
}

JavaScript

$('a').on('click', function(){
    $('a').removeClass('selected');
    $(this).addClass('selected');
});