JSFiddle - React, Tailwind, and code Playground

HTML

<div id="outer">
  <div id="image">
    <img src="https://www.petfinder.com/wp-content/uploads/2012/11/91615172-find-a-lump-on-cats-skin-632x475.jpg" style="width:100px;height:100px;">
  </div>
  <div id="button">
    <button>
      hey click me pls
    </button>
  </div>
</div>

CSS

#image:hover + #button {
  background-color: red;
}