JSFiddle - React, Tailwind, and code Playground

HTML

<li class="k-tile k-state-selected" data-type="f" data-uid="504c365a-fd54-4a9f-adc2-c217ce4dc8fc" role="option" aria-selected="false">
    <div class="k-thumb">
        <img class="k-image" alt="1.jpg" style="" src="http://doelbewust.nl/img/doelbewust_logo.png">
    </div>
    <strong>1.jpg</strong>
    <span class="k-filesize">206.97 KB</span>
</li>

JavaScript

$('li.k-state-selected').on("click", function(){
      var src=$(this).find("img").attr("src");
    alert(src);
    });