Add some notes on ::first-letter ::first-line conventions

Author: fantasai

css-module/Overview.html

@@ -61,13 +61,13 @@ <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 29 March 2012</h2>
     <dd><a href="http://www.w3.org/PreviousVersionURI">
      http://www.w3.org/PreviousVersionURI</a>
 
-    <dt>Issues List:
+    <dt>Issue Tracking:
 
     <dd><a
      href="http://www.w3.org/Style/CSS/Tracker/products/FIXME">http://www.w3.org/Style/CSS/Tracker/products/FIXME</a>
 
 
-    <dt>Discussion:
+    <dt>Feedback:
 
     <dd><a
      href="http://lists.w3.org/Archives/Public/www-style/">www-style@w3.org</a>
@@ -226,9 +226,20 @@ <h3 id=placement><span class=secno>1.1. </span> Module interactions</h3>
   <p>This module replaces and extends the <var class=replaceme>SUMMARIZE
    HERE</var> features defined in <a href="#CSS21"
    rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a> sections <var
-   class=replaceme>W.X and Y.Z</var>. All properties in this module apply to
-   the <code>::first-line</code> and <code>::first-letter</code>
-   pseudo-elements.
+   class=replaceme>W.X and Y.Z</var>.
+
+  <p class=replaceme>All properties in this module apply to the
+   <code>::first-line</code> and <code>::first-letter</code> pseudo-elements.
+   <!-- HANDLE, THEN REMOVE THIS COMMENT
+     Properties that affect box layout should be excluded from ::first-line.
+     Properties that take things out-of-flow or alter box construction should
+     be excluded from both ::first-line and ::first-letter. (A special exception
+     is made for float on ::first-letter, which is defined to emulate drop-caps.)
+     Examples of ::first-line / ::first-letter statements:
+     http://dev.w3.org/csswg/css3-background/#placement
+       (All properties apply to ::first-letter; some apply to ::first-line)
+  -->
+   
 
   <h3 id=values><span class=secno>1.2. </span> Values</h3>
 

css-module/Overview.src.html

@@ -46,10 +46,10 @@ <h2 class="no-num no-toc">[LONGSTATUS] [DATE]</h2>
     <dd><a href="http://www.w3.org/PreviousVersionURI">
     http://www.w3.org/PreviousVersionURI</a>
 
-  <dt>Issues List:</dt>
+  <dt>Issue Tracking:</dt>
     <dd><a href="http://www.w3.org/Style/CSS/Tracker/products/FIXME">http://www.w3.org/Style/CSS/Tracker/products/FIXME</a>
 
-  <dt>Discussion:</dt>
+  <dt>Feedback:</dt>
     <dd><a href="http://lists.w3.org/Archives/Public/www-style/">www-style@w3.org</a> with subject line &ldquo;<kbd>[[SHORTNAME]] <var>&hellip; message topic &hellip;</var></kbd>&rdquo;
 
   <dt>Editors:
@@ -103,8 +103,18 @@ <h3 id="placement">
 
   <p>This module replaces and extends the <var class="replaceme">SUMMARIZE HERE</var>
   features defined in [[!CSS21]] sections <var class="replaceme">W.X and Y.Z</var>.
-  All properties in this module apply to the <code>::first-line</code> and
+
+  <p class="replaceme">All properties in this module apply to the <code>::first-line</code> and
   <code>::first-letter</code> pseudo-elements.
+  <!-- HANDLE, THEN REMOVE THIS COMMENT
+     Properties that affect box layout should be excluded from ::first-line.
+     Properties that take things out-of-flow or alter box construction should
+     be excluded from both ::first-line and ::first-letter. (A special exception
+     is made for float on ::first-letter, which is defined to emulate drop-caps.)
+     Examples of ::first-line / ::first-letter statements:
+     http://dev.w3.org/csswg/css3-background/#placement
+       (All properties apply to ::first-letter; some apply to ::first-line)
+  -->
 
 <h3 id="values">
 Values</h3>