@keyframes spinner {
  to {transform: rotate(360deg);}
}

#spinnerLoader {
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 9999998;
}

#spinnerLoader #spinnerContainer {
    position: fixed;
    z-index: 9999999;
    left: calc(50% - 48px);
    top: calc(50% - 26px);
}
 
.spinner:before {
  content: '';
  box-sizing: border-box;
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border-top: 5px solid #a3c961;
  border-right: 5px solid transparent;
  animation: spinner 1s linear infinite;
}