@unit-h: .1rem;
@icon-border-width: @unit-h;
@icon-border-radius: @unit-h;
@icon-prefix: yy-icon;

// Icon base style
.@{icon-prefix} {
  box-sizing: border-box;
  display: inline-block;
  font-size: inherit;
  font-style: normal;
  height: 1em;
  position: relative;
  text-indent: -9999px;
  vertical-align: middle;
  width: 1em;
  &::before,
  &::after {
    display: block;
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    box-sizing: border-box;
  }

  // Icon sizes
  &.icon-2x {
    font-size: 1.6rem;
  }

  &.icon-3x {
    font-size: 2.4rem;
  }

  &.icon-4x {
    font-size: 3.2rem;
  }
}