JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container" onclick="myFunction(this)">
  <div class="bar1"></div>
  <div class="bar2"></div>
  <div class="bar3"></div>
</div>

CSS

.container {
  display: inline-block;
  cursor: pointer;
  height: 50px;
  width: 50px;
}

.bar1, .bar2, .bar3 {
  width: 100%;
  height: 5px;
  background-color: #454545;
  border-radius: 5px;
  transform-origin: right;
  transition: 0.4s;
}

.bar2 {
  margin: 18px 0;
}

.change .bar1,
.change .bar3 {
  width: 73.5px;
}

.change .bar1 {
  -webkit-transform: rotate(-45deg) translate(-12px, -18px);
  transform: rotate(-45deg) translate(-12px, -18px);
}

.change .bar3 {
  width: 73.5px;
  -webkit-transform: rotate(45deg) translate(-14px, 18px);
  transform: rotate(45deg) translate(-14px, 18px);
}

.change .bar2 {
  opacity: 0;
}

JavaScript

function myFunction(x) {
  x.classList.toggle("change");
}