JSFiddle - React, Tailwind, and code Playground

HTML

<img class="img-responsive" id="thumbnail" src="https://i.stack.imgur.com/mJHKc.png?s=32&g=1">

<script>
  $(document).ready(function(){
    $('#thumbnail').hover(function(){
        $(this).toggleClass('scaleout');
    })
  });
</script>

CSS

.scaleout {
    transform: scale(1, 0.80);
    -ms-transform: scale(1, 0.80);
    -webkit-transform: scale(1, 0.80);
}