@keyframes ripple {
    to {
      opacity: 0;
      transform: scale(2);
    }
  }
  .bai-ripple {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    border-radius: 50%;
    z-index: 2;
  }
  .bai-ripple span {
    transform: scale(0);
    border-radius: 100%;
    position: absolute;
    opacity: 0.75;
    background-color: white;
    animation-name: ripple;
    animation-duration: 600ms;
  }