[css2] Added 'outline'

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401199

Author: bert-github

css2/properties/properties.db

@@ -372,3 +372,12 @@ agent;; *;; no;; N/A;; all */
 
 /* counter-increment;; [ <identifier> <integer>? ]+ | inherit;; depends on
 user agent;; *;; no;; N/A;; all */
+
+/* outline;; <outline-color> || <outline-style> || <outline-width> | inherit;;
+   see individual properties;; *;; no;; N/A;; visual */
+/* outline-color;; <color> | invert | inherit;;
+   invert;; *;; no;; N/A;; visual */
+/* outline-style;; <border-style> | inherit;;
+   solid;; *;; no;; N/A;; visual */
+/* outline-width;; <border-width> | inherit;;
+   medium;; *;; no;; N/A;; visual */