JSFiddle - React, Tailwind, and code Playground

HTML

<body>
  <img src="http://www.craigjoneswildlifephotography.co.uk/blog/wp-content/uploads/2010/07/CMJ57311.jpg">
</body>
    


    
</body>

JavaScript

$(document).ready(function(){ 
    
    $(document).click(function (ev) {
      $(".marker").remove();
      $("body").append(            
        $('<div class="marker"></div>').css({
          position: 'absolute',
          top: ev.pageY + 'px',
          left: ev.pageX + 'px',
          width: '10px',
          height: '10px',
          background: '#000000'
        })              
      );
    });
    
});