[css-writing-modes] Fix page progression to reflect the addions of sideways-lr/rl

kojiishi · kojiishi · commit afe0827b86b9 · 2015-09-12T23:49:17.000+09:00
diff --git a/css-writing-modes/Overview.bs b/css-writing-modes/Overview.bs
@@ -2340,14 +2340,16 @@ Page Flow: the page progression direction</h2>
     page in a spread is first in the flow and whether the first page is by
     default a left or right page, depends on the writing direction as follows:
 
-  <ul>
-    <li>The page progression is right-to-left if the root element's
-      'writing-mode' is ''vertical-rl'' or if the root element's 'writing-mode'
-      is ''horizontal-tb'' and its 'direction' is ''rtl''.
-    <li>The page progression is left-to-right if the root element's
-      'writing-mode' is ''vertical-lr'' or if the root element's 'writing-mode'
-      is ''horizontal-tb'' and its 'direction' is ''ltr''.
-  </ul>
+  <ol>
+    <li>If the root element's 'writing-mode' is ''vertical-rl'',
+      the page progression is right-to-left.
+    <li>Otherwise if the root element's 'writing-mode' is ''vertical-lr'',
+      the page progression is left-to-right.
+    <li>Otherwise if the root element's 'direction' is ''rtl'',
+      the page progression is right-to-left.
+    <li>Otherwise
+      the page progression is left-to-right.
+  </ol>
 
   <p>(Unless otherwise overridden, the first page of a document begins on the
     second half of a spread, e.g. on the right page in a left-to-right page
