JSFiddle - React, Tailwind, and code Playground

HTML

<a class="tags-cloud-link" id="mathjax_test" href="#" rel="tag">mathjax test<span class="tags-cloud-count">1</span></a>
<a class="tags-cloud-link" id="markdown" href="#" rel="tag">markdown<span class="tags-cloud-count">1</span></a>
<a class="tags-cloud-link" id="common" href="#" rel="tag">common<span class="tags-cloud-count">1</span></a>

JavaScript

$(document).ready(function(){
	$(".tags-cloud-link").click(function(e){
  	if(e.target.id === 'mathjax_test'){
    	$(".tags-cloud-link#mathjax_test").remove();
    }
  });
})