.quicktab-loaders {
  position: relative;
  box-sizing: border-box;
  width: 64px;
  height: 64px;
  color: $primary-color;

  > div {
    position: absolute;
    top: 0;
    left: 0;
    box-sizing: border-box;
    display: inline-block;
    float: none;
    width: 64px;
    height: 64px;
    background-color: currentcolor;
    border: 0 solid currentcolor;
    border-radius: 100%;
    opacity: 0;
    animation: ball-scale-multiple 1s 0s linear infinite;

    &:nth-child(2) {
      animation-delay: 0.2s;
    }

    &:nth-child(4) {
      animation-delay: 0.4s;
    }
  }
}

@keyframes ball-scale-multiple {
  0% {
    opacity: 0;
    transform: scale(0);
  }

  5% {
    opacity: 0.75;
  }

  100% {
    opacity: 0;
    transform: scale(1);
  }
}