// Mixins
// --------------------------

border-radius(radius)
   -webkit-border-radius radius
   -moz-border-radius radius
   border-radius radius


icon-stack(width = 2em, height = 2em, top-font-size = 1em, base-font-size = 2em)
   .icon-stack
      position relative
      display inline-block
      width width
      height height
      line-height width
      vertical-align -35%

      [class^="icon-"]
      [class*=" icon-"]
         display block
         text-align center
         position absolute
         width 100%
         height 100%
         font-size top-font-size
         line-height inherit
         *line-height height

      .icon-stack-base
         font-size base-font-size
         *line-height (height / base-font-size)

vendor(prop, args...)
  for prefix in vendor-prefixes
      unless prefix == official
        property = '-' + prefix + '-' + prop
        add-property(property, args)
    add-property(prop, args)

buildIcons(hash)
  for icon, index in hash
    .icon-{icon}:before
      content icon[1]