#preloader {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  transform: translate(-50%, -50%);
  z-index: 9999;
}
.spinner {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  border: 3px solid transparent;
  border-top-color: #3498db;
  border-radius: 50% !important;
  animation: spin 1s linear infinite;
}
.spinner::before,
.spinner::after {
  content: "";
  position: absolute;
  border: 3px solid transparent;
  border-radius: 50% !important;
}
.spinner::before {
  top: 6px;
  left: 6px;
  right: 6px;
  bottom: 6px;
  border-top-color: #e74c3c;
  animation: spin 2s linear infinite reverse;
}
.spinner::after {
  top: 18px;
  left: 18px;
  right: 18px;
  bottom: 18px;
  border-top-color: #f39c12;
  animation: spin 0.5s linear infinite;
}
.center-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background-color: #27ae60;
  border-radius: 50% !important;
  transform: translate(-50%, -50%);
}
@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}