Button {
  font-family: arial
  text-align: center

  cursor: pointer

  padding: .2rem 2rem
  min-width: 4rem
  border: 1px #b9b9b9 solid

  -subtle {
    color: #b9b9b9
    :hover {
      color: #222
    }
  }
  -primary {
    $primaryColor

    :hover { 
      opacity: .9
    }

    border: none
  }
}