$skeletonBg: rgba(33, 33, 36, .1);

@mixin skeleton-bg($radius: .16rem, $color: $skeletonBg) {
  border-radius: $radius;
  background-color: $color;
}

@keyframes skeleton-blink {
  50% {
    opacity: .6;
  }
}

.wrap {
  animation: skeleton-blink .8s ease-in-out infinite;
  width: 100%;
}