class Rouge::Lexers::CSS

def self.builtins
  @builtins ||= Set.new %w(
    above absolute always armenian aural auto avoid left bottom
    baseline behind below bidi-override blink block bold bolder
    both bottom capitalize center center-left center-right circle
    cjk-ideographic close-quote collapse condensed continuous crop
    cross crosshair cursive dashed decimal decimal-leading-zero
    default digits disc dotted double e-resize embed expanded
    extra-condensed extra-expanded fantasy far-left far-right fast
    faster fixed georgian groove hebrew help hidden hide high higher
    hiragana hiragana-iroha icon inherit inline inline-table inset
    inside invert italic justify katakana katakana-iroha landscape
    large larger left left-side leftwards level lighter line-through
    list-item loud low lower lower-alpha lower-greek lower-roman
    lowercase ltr medium message-box middle mix monospace n-resize
    narrower ne-resize no-close-quote no-open-quote no-repeat none
    normal nowrap nw-resize oblique once open-quote outset outside
    overline pointer portrait px relative repeat repeat-x repeat-y
    rgb ridge right right-side rightwards s-resize sans-serif scroll
    se-resize semi-condensed semi-expanded separate serif show
    silent slow slower small-caps small-caption smaller soft solid
    spell-out square static status-bar super sw-resize table-caption
    table-cell table-column table-column-group table-footer-group
    table-header-group table-row table-row-group text text-bottom
    text-top thick thin top transparent ultra-condensed
    ultra-expanded underline upper-alpha upper-latin upper-roman
    uppercase url visible w-resize wait wider x-fast x-high x-large
    x-loud x-low x-small x-soft xx-large xx-small yes
  )
end