error handling, what to do if fo markup is invalid
auto overflow value and handling error-if-overflow
adjusting length values (eg. for borders) to renderable values
available fonts
converting cm/in to pt (dpi)
active state for multi properties
title, used to identify a set of pages (in a page sequence)
the width (in inline-progression-dimension) of a character with
treat-word-as-space true
maximum space used by conditional areas from region-reference-area
if there should be "hot links" to before floats or footnotes
when to clear side floats if space in inline-progression-dimension
is not enough
placement of left over footnotes on a page with a region-body
using color property as border colour
interpretting all border styles (except outset) as solid
thin, medium and thick values for border width
initial font-family value
absolute font sizes (eg, xx-small, x-small etc.)
relative font sizes (eg. larger, smaller)
small caps simulation
font weight mapping
baseline info for a font if not available
determining sub/superscript when another baseline is dominant
scaling method for external-graphic and instream-foreign-object
the width of a replaced element
"normal" line height value
text alignment (stretching the line with letter and word spacing)
text transform
initial color
rendering intent of auto
dot character for leader
line breaking with leaders, use optimum length when breaking the line
page height/width of auto
left and right caption widths
glyph orientation vertical of auto
rendering processor of content-type (mime type)
