.spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  position:absolute;
  top:50%;
}

.lds-roller {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;

  /* Nested */
  div {
    animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    transform-origin: 40px 40px;
    &:after {
      content: " ";
      display: block;
      position: absolute;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: #3d008d;
      margin: -4px 0 0 -4px;
    }
    &:nth-child(1) {
      animation-delay: -0.036s;
      &:after {
        top: 63px;
        left: 63px;
      }
    }
    
    &:nth-child(2) {
      animation-delay: -0.072s;
      &:after {
        top: 68px;
        left: 56px;
      }
    }
    
    &:nth-child(3) {
      animation-delay: -0.108s;
      &:after {
        top: 71px;
        left: 48px;
      }
    }
    
    &:nth-child(4) {
      animation-delay: -0.144s;
      &:after {
        top: 72px;
        left: 40px;
      }
    }
    
    &:nth-child(5) {
      animation-delay: -0.18s;
      &:after {
        top: 71px;
        left: 32px;
      }
    }
    
    &:nth-child(6) {
      animation-delay: -0.216s;
      &:after {
        top: 68px;
        left: 24px;
      }
    }
    
    &:nth-child(7) {
      animation-delay: -0.252s;
      &:after {
        top: 63px;
        left: 17px;
      }
    }
    
    &:nth-child(8) {
      animation-delay: -0.288s;
      &:after {
        top: 56px;
        left: 12px;
      }
    }
  }
  
}



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