better solution for ascent/descent (cross-platform, embeded/not)

fake space detection
take care of spaces (simulate by <span>)

manpage

disable selection if we know unicode is wrong

compress div/span states

option to break ligatures
check if we can add information to the font, and let browsers show ligatures automatically

use absolute positioning for long whitespace

==Future==
custom html/css
native support for image
native support for draw