.pulse {
  overflow: visible;
  position: relative;

  &::before {
    content: '';
    display: block;
    position: absolute;
    pointer-events: none;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: inherit;
    border-radius: inherit;
    transition:
      opacity 0.3s,
      transform 0.3s;
    animation: pulse-animation 1s cubic-bezier(0.24, 0, 0.38, 1) infinite;
    z-index: -1;
  }
}

@keyframes pulse-animation {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0;
    transform: scale(1.5);
  }
  100% {
    opacity: 0;
    transform: scale(1.5);
  }
}

/* Scaling */

.scale-transition {
  transition: transform 0.3s cubic-bezier(0.53, 0.01, 0.36, 1.63) !important;
}
.scale-transition.scale-out {
  transform: scale(0);
  transition: transform 0.2s !important;
}
.scale-transition.scale-in {
  transform: scale(1);
}

/* Fading */

ul.staggered-list li {
  opacity: 0;
}

.fade-in {
  opacity: 0;
  transform-origin: 0 50%;
}