div.layermain-gmloader {
    width: 100%;
    height: 100%;
    background: #000000;
    opacity: 0.7;
    position: fixed;
    z-index: 999;
    display: none;
    top:0 !important;
}

div.main-gmloader {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index:999;
    display:none;
}

.gmloader {
  width: 144px;
  height: 144px;
  margin-left:-72px;
  margin-top:-72px;
  border: 3px dotted #FFF;
  border-style: solid solid dotted dotted;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  box-sizing: border-box;
  animation: rotation 2s linear infinite;
}
.gmloader::after {
  content: '';  
  box-sizing: border-box;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  border: 3px dotted #FF3D00;
  border-style: solid solid dotted;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  animation: rotationBack 1s linear infinite;
  transform-origin: center center;
}
    
@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
} 
@keyframes rotationBack {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}