text-align: <string> falls back to 'end', not 'start'. Allow keyword + string. Add issues.

Author: fantasai

css3-text/Overview.src.html

@@ -1110,7 +1110,7 @@ <h3 id="text-align"><span class="secno">6.1.</span>
         </tr>
         <tr>
           <th>Value:</th>
-          <td>start | end | left | right | center | justify |
+          <td>[start | end | left | right | center | justify ] ||
             <a class="noxref" href="http://www.w3.org/TR/CSS21/syndata.html#value-def-string"><span class="value-inst-string">&lt;string&gt;</span></a>
           </td>
         </tr>
@@ -1166,13 +1166,21 @@ <h3 id="text-align"><span class="secno">6.1.</span>
     <dt><dfn title="text-align:<string>"><code><span title="&lt;string&gt;"><a
       class="noxref" href="http://www.w3.org/TR/CSS21/syndata.html#value-def-string"
       ><span class="value-inst-string">&lt;string&gt;</span></a></span></code></dfn></dt>
-      <dd>When applied to a table cell, specifies a character on which all
-        cells in its table column that also have a character value for 'text-align'
+      <dd>The string must be a single character; otherwise the declaration must
+        be <a href="http://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.
+        When applied to a table cell, specifies a character on which all cells
+        in its table column that also have a character value for 'text-align'
         will align (see the section on <a href="http://www.w3.org/TR/CSS21/tables.html#column-alignment">horizontal
-        alignment in a column</a> for details and an example). When applied
-        to any other element, it is treated as 'start'. The string must be
-        a single character; otherwise the declaration must be
-        <a href="http://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.</dd>
+        alignment in a column</a> for details and an example).
+        If a keyword value is also given, it is used when the value is applied
+        to other elements, or when the character is not present in the text.
+        If a keyword value is not also given, these cases are treated the same
+        as 'end'.
+        <span class="issue">Define what happens when string appears more than
+        once in text. Define what happens when the line wraps. Define how cells
+        align if e.g. they all align on '.', but the col is 10em wide and no
+        cell contains more than 3 chars.</span>
+ </dd>
     </dl>
 
     <p>A block of text is a stack of