JSFiddle - React, Tailwind, and code Playground

HTML

<img src="https://c7.staticflickr.com/3/2538/3742771246_2648fa4e6e_b.jpg" onClick="swap(this)" onmouseover="" style="cursor: pointer;" height="100" width="100">
<script>
function swap(img)
 {
 debugger;
  if (img.width===100)
   {
    img.style.height = 'auto';
    img.style.width = 'auto';
   }
  else
   {
    img.style.height = '100px';
    img.style.width = '100px';
   }
}</script>