font-face(family, filename, style = 'normal', weight = 'normal')
  @font-face
    font-family family
    src url("/fonts/" + filename + ".eot?#iefix") format("embedded-opentype")
    font-weight weight
    font-style style    
  @font-face
    font-family family
    src url("/fonts/" + filename + ".woff") format("woff"), url("/fonts/" + filename + ".ttf") format("truetype"), url("/fonts/" + filename + ".svg") format("svg")
    font-weight weight
    font-style style
    
font-face('Foo', 'font')

.foo
  font-family 'Foo'