Property:	alignment-adjust (spec)
Value:	auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical | <percentage> | <length> | initial | inherit
Initial:	auto
Applies to:	inline-level elements
Inherited:	no
Percentages:	refers to the line-height of the element
Media:	visual
Computed value:	see text
Spec URL:	http://www.w3.org/TR/css3-linebox/#alignment-adjust