JSFiddle - React, Tailwind, and code Playground

HTML

<iframe src="http://jsfiddle.net" 100px; height:100px;"></iframe>

JavaScript

$(document).ready(function() { 

   $(document).on('mousedown', function(evt) {
      console.log('X: '+ evt.pageX);
      console.log('Y: '+ evt.pageY);
      //$.post('clickmap.php', {
          //x:evt.pageX,
          //y:evt.pageY        
       //});
   });
});