[css2] Added Ian's propsoed text about where the top of an element is assumed

bert-github · bert-github · commit 7d9bf3afb6a9 · 2003-06-05T17:33:32.000Z
to be (for use by floating and absolutely positioned children), if the
element is empty and its top and bottom margins collapse.

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%402093
diff --git a/css2/box.src b/css2/box.src
@@ -1,6 +1,6 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html lang="en">
-<!-- $Id: box.src,v 1.33 2003-05-04 22:43:22 bbos Exp $ -->
+<!-- $Id: box.src,v 1.34 2003-06-05 17:33:32 bbos Exp $ -->
 <HEAD>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <TITLE>Box model</TITLE>
@@ -298,6 +298,13 @@ href="visuren.html#absolutely-positioned">absolutely</a>
 positioned boxes do not collapse (not even with their
 in-flow children).
 
+<ins>
+<!-- suggested in http://lists.w3.org/Archives/Member/w3c-css-wg/2002OctDec/0022.html -->
+<li>If the top and bottom margins of a box are adjacent, then it is
+possible for margins to collapse <em>through</em> it. In this case,
+the top of the box is defined to be where it would have been if the
+box's margins had not been adjacent.
+</ins>
 </ul>
 
 <p>Collapsing is based on the <em>computed value</em> of <span
