+* No setting font sizes, power to users to decide those.
+ We will include and document <span class=?> to support colors
+ for user-supplied CSS.
+
+* Only one font type: fixed. This is for accessibility, we must
+ not blow certain elements out-of-proportion with different
+ fonts on the page when a reader increases font size.
+
+* Bold and underline elements are OK since they should render fine
+ regardless of chosen font and gracefully degrade if a display does
+ not support them. Italics and strike-through elements must be
+ avoided as they do not render well with some displays or user-chosen
+ fonts.