#page-loader {                                                                                                     
  position: fixed;
  left: 0px;
  top: 40%;
  width: 100%;
  height: 100%;
  z-index: 10000;                                                                                                  
  display: none;                                                                                                   
  text-align: center;                                                                                              
  width: 100%;                                                                                                     
  padding-top: 25px;                                                                                               
 /* background-color: rgba(255, 255, 255, 0.2);*/                                                                       
}

.lds-dual-ring {
  display: inline-block;
  width: 80px;
  height: 80px;
}
.lds-dual-ring:after {
  content: " ";
  display: block;
  width: 64px;
  height: 64px;
  margin: 8px;
  border-radius: 50%;
  border: 6px solid #fff;
  border-color: #fff transparent #fff transparent;
  animation: lds-dual-ring 1.2s linear infinite;
}
@keyframes lds-dual-ring {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}