JSFiddle - React, Tailwind, and code Playground

HTML

<button type="submit" class="icon" >
Submit
</button>

<div class="menu">

</div>

CSS

.menu {
  height: 100px;
  width: 100px;
  background: red;
}

.toggle-menu{
  background: blue;
}

JavaScript

$(document).ready(function(){
  $(".icon").click(function(){
    setTimeout(function(){
      $(".menu").toggleClass("toggle-menu");
    }, 1000)

  });
});