.expand-symbol {
  display: block;
  transition: transform .1s;
  transform: rotate(180deg);
  transform-origin: 50% 50%;
  width: 24px;
  height: 24px;
  margin-left: auto;

  &.active,
  &.up,
  .tui-aside-navigation :checked ~ label &,
  .tui-accordion .active & {
    transform: rotate(0deg);
  }

  &.down {
    transform: rotate(180deg);
  }
}