JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="button" data-module="modules/AnimatedArrowButton" data-contact-button>
  <span>Tell me more</span>
</a>

CSS

/* --- hopefully this is in your framework --- */
*{box-sizing: border-box;}

.button, .promo__button{
  display: inline-block;
  overflow: hidden;
  position: relative;
  width: 240px;
  height: 70px;
  background: #E21710;
  color: #fff;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: bold;
  font-family: sans-serif;
}

/* --- text --- */

.button span{
  position: absolute;
  display: inline-block;
  white-space: nowrap;
  margin: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.promo__button span{
  animation: TEXT-IN 0.5s forwards;
}

.promo__button:hover span{
  animation: TEXT-OUT 0.5s forwards;
}

/* --- arrow --- */

.promo__button::before{
  position: absolute;
  display: inline-block;
  height: 2px;
  background: #fff;
  content: " ";
  top: 50%;
  animation: LINE-OUT 1s forwards;
}

.promo__button::after{
  position: absolute;
  display: inline-block;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  content: " ";
  top: 50%;
  right: 30%;
  margin-right: -5px;
  margin-top: 1px;
  transform-origin: center;
  opacity: 0;
  transform: translate(-50%, -50%) rotate(45deg);
  animation: ARROWHEAD-OUT 1s forwards;
}

.promo__button:hover::before{
  animation: LINE-IN 1s forwards;
}

.promo__button:hover::after{
  animation: ARROWHEAD-IN 1s forwards;
}

/* --- animations --- */

@-webkit-keyframes TEXT-IN {
  0%   { margin-left: -30px; opacity: 0; }
  100% { margin-left: 0; opacity: 1; }
}

@-webkit-keyframes TEXT-OUT {
  0%   { margin-left: 0; opacity: 1; }
  100% { margin-left: 30px; opacity: 0; }
}

@-webkit-keyframes LINE-IN {
  0%   { left: 0; right: 100%; }
  50%  { left: 0; right: 30%; }
  100% { left: 30%; right: 30%; }
}

@-webkit-keyframes LINE-OUT {
  0%   { width: 40%; transform: translateX(-50%); left: 50%; }
  100% { width: 40%; transform: translateX(100%); left: 100%; }
}

@-webkit-keyframes ARROWHEAD-IN {
  60%   { width: 0; height: 0; opacity: 0; }
  65%   { width: 0; height: 0; opacity:...

JavaScript

$('.button').hover(function(){
	$(this).addClass('promo__button');
});