// 旋转动画 - 原地旋转
@mixin ss-spin-in-situ($speed) {
  animation: ss-spin $speed infinite linear;
}

// 旋转动画
@keyframes ss-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes ss-zoom-in-center {
  from {
    transform: scale(1);
  }
  
  to {
    transform: scale(0);
  }
}