absolute;
  animation: pulse_51 750ms ease-in infinite;
  border-top: 27px solid #215A6D;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 0px;
}

.tri.invert {
  border-top: 0px;
  border-bottom: 27px solid #215A6D;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
}

.tri:nth-child(1) {
  left: 30px;
}

.tri:nth-child(2) {
  left: 15px;
  top: 27px;
  animation-delay: -125ms;
}

.tri:nth-child(3) {
  left: 30px;
  top: 27px;
}

.t