Swipe Button

				.swipe-btn {
  display: inline-block;
  padding: 10px 43px;
  font-size: 17px;
  cursor: pointer;
  position: relative;
  color: #fff;
  text-align: center;
  z-index: 1;
  letter-spacing: 2px;
  overflow: hidden;
  border: 2px solid #fff;
  line-height: normal;
  background-color: #2735d5;
}
.swipe-btn::before {
  position: absolute;
  content: "";
  display: block;
  width: 0;
  height: 100%;
  top: 0;
  right: 0;
  background-color: rgb(14, 35, 72);
  z-index: -1;
  pointer-events: none;
  -webkit-transition: all .3s cubic-bezier(.77,0,.175,1);
  transition: all .3s cubic-bezier(.77,0,.175,1);
}
.swipe-btn:hover::before {
  width: 100%;
  left: 0;
  right: auto;
}
.swipe-btn:hover {
  animation: popup 1.5s;
}
@keyframes popup {
  0% {
  transform: scale(1);
  }
  50% {
  transform: scale(.75);
  }
  75% {
  transform: scale(1.15);
  }
  100% {
  transform: scale(1);
  }
}