.ispinner-blade {
    position: absolute;
    top: 50%;
    left:50%;
    transform: translate(-50%,-50%);
    width: 2px;
    height: 8px;
    background-color: gold;
    border-radius: 45px;
    animation: iSpinnerBlade 1s linear infinite;
    will-change: opacity; 
  }
  
  .ispinner-blade:nth-child(1) {
      transform: rotate(45deg) translateY(-6.5px);
      animation-delay: -1.625s; }
  .ispinner-blade:nth-child(2) {
      transform: rotate(90deg) translateY(-6.5px);
      animation-delay: -1.5s; }
  .ispinner-blade:nth-child(3) {
      transform: rotate(135deg) translateY(-6.5px);
      animation-delay: -1.375s; }
  .ispinner-blade:nth-child(4) {
      transform: rotate(180deg) translateY(-6.5px);
      animation-delay: -1.25s; }
  .ispinner-blade:nth-child(5) {
      transform: rotate(225deg) translateY(-6.5px);
      animation-delay: -1.125s; }
  .ispinner-blade:nth-child(6) {
      transform: rotate(270deg) translateY(-6.5px);
      animation-delay: -1s; }
  .ispinner-blade:nth-child(7) {
      transform: rotate(315deg) translateY(-6.5px);
      animation-delay: -0.875s; }
  .ispinner-blade:nth-child(8) {
      transform: rotate(360deg) translateY(-6.5px);
      animation-delay: -0.75s; }
      

@keyframes iSpinnerBlade {
  0% {
    opacity: 0.85; }
  50% {
    opacity: 0.25; }
  100% {
    opacity: 0.25; } 
 }