.pulse {
  box-shadow: 0 0 0 0 rgba(27,132,248, 0.4);
  animation: pulse 3s infinite;
  animation-timing-function: ease-in-out;
  will-change: transform;
  border-radius: 10px;
  width: 85%;
  margin: 0 auto;
  margin-bottom: 10px;
}

.pulse:hover {
  animation: none;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    -moz-box-shadow: 0 0 0 0 rgba(177,27,248,0.4);
    box-shadow: 0 0 0 0 rgba(177,27,248,0.4);
  }
  50% {
    transform: scale(1.05);
    -moz-box-shadow: 0 0 0 40px rgba(177,27,248, 0);
    box-shadow: 0 0 0 20px rgba(177,27,248, 0);
  }
  100% {
    transform: scale(1);
    -moz-box-shadow: 0 0 0 0 rgba(177,27,248, 0);
    box-shadow: 0 0 0 0 rgba(27,132,248, 0);
  }
}