.dots-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.6);
  display:none;
  z-index: -9999;
}

.dot {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: none;
  animation: scale 1s ease-in-out infinite;
  margin-right:15px;
  background-color:#fff;
}

@keyframes scale {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.5);
  }
}

.dot:nth-child(2) {
  animation-delay: 0.2s;
}

.dot:nth-child(3) {
  animation-delay: 0.4s;
}