JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" placeholder="Focus me">
<div class="appears">
  <button>Now click me</button>
</div>

CSS

button {
  padding: 5em;
}

.appears {
  display: block;
}

input:focus + .appears {
  display: none;
}

JavaScript

$('button').click(function() {
	alert('click event fired');
});