$following {
  :after {
    display: inline-block
    content: ' '
    width: 20px
    height: 12px
    margin-left: 3px
    background: svg(subscribed) no-repeat center

    @svg subscribed {
      width: 20px
      height: 12px
      content: "<circle cx='6' stroke='#BBB' fill='none' cy='6' r='5' /> <circle cx='6' cy='6' r='3' fill='#BBB'/>"
    }
  }
}