#loader {
  display: inline-block;
  position: fixed;
  top: 45%;
  left: 50%;
  width: 64px;
  height: 64px;
  z-index: 2;
}
#loader div {
  box-sizing: border-box;
  display: none;
  position: absolute;
  width: 51px;
  height: 51px;
  margin: 6px;
  border: 6px solid blue;
  border-radius: 50%;
  animation: lds-ring 1.3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  border-color: blue blue blue transparent;
  transition: 1.3s;
}

@keyframes lds-ring {
  0% {
    transform: rotate(0deg);
    
  }
  100% {
    transform: rotate(360deg);
    
  }
}