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1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/design_www.txt b/Documentation/design_www.txt
index b73a7987..87631840 100644
--- a/Documentation/design_www.txt
+++ b/Documentation/design_www.txt
@@ -59,6 +59,16 @@ variable-width fonts.
 * No setting colors or font sizes, power to users to decide those.
+* Only one font type (fixed or variable) per page.  This is for
+  accessibility, we must not blow certain elements out-of-proportion
+  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.
 * No JavaScript. JS is historically too buggy and insecure, and we will
   never expect our readers to do either of the following:
   a) read and audit all our code for on every single page load