#preloader {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  overflow: auto;
  background-color: #090a1c;
  z-index: 5000;
  transition: opacity 0.2s;
  cursor: progress;
}

.no-js #preloader {
  visibility: hidden;
}

.loader {
  border: 16px solid #191a2c; /* Light grey */
  border-top: 16px solid #55ddaa; /* Blue */
  border-radius: 50%;
  width: 220px;
  height: 220px;
  position: absolute;
     margin: auto;
     top: 0;
     right: 0;
     bottom: 0;
     left: 0;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}