array (size=2)
  0 =>
    object(Sabberworm\CSS\Property\Selector)[142]
      private 'sSelector' => string 'abbr' (length=4)
      private 'iSpecificity' => null
  1 =>
    object(Sabberworm\CSS\Property\Selector)[143]
      private 'sSelector' => string 'acronym' (length=7)
      private 'iSpecificity' => null
array (size=4)
  0 =>
    object(Sabberworm\CSS\Property\Selector)[153]
      private 'sSelector' => string 'blockquote:before' (length=17)
      private 'iSpecificity' => null
  1 =>
    object(Sabberworm\CSS\Property\Selector)[154]
      private 'sSelector' => string 'blockquote:after' (length=16)
      private 'iSpecificity' => null
  2 =>
    object(Sabberworm\CSS\Property\Selector)[155]
      private 'sSelector' => string 'q:before' (length=8)
      private 'iSpecificity' => null
  3 =>
    object(Sabberworm\CSS\Property\Selector)[156]
      private 'sSelector' => string 'q:after' (length=7)
      private 'iSpecificity' => null