[css-text-decor] Make [ right | left ] optional for text-emphasis-position per WG resolution. https://lists.w3.org/Archives/Public/www-style/2017Feb/0049.html

Author: fantasai

css-text-decor/Overview.bs

@@ -692,12 +692,13 @@ Emphasis Mark Position: the 'text-emphasis-position' property</h3>
 
   <pre class="propdef">
   Name: text-emphasis-position
-  Value: [ over | under ] && [ right | left ]
+  Value: [ over | under ] && [ right | left ]?
   Initial: over right
   Inherited: yes
   </pre>
 
   <p>This property describes where emphasis marks are drawn at.
+    If ''[ right | left ]'' is omitted, it defaults to ''right''.
     The values have following meanings:</p>
 
   <dl>
@@ -961,7 +962,9 @@ Changes</h2>
         to account for addition of ''sideways-lr'' and ''sideways-rl'' values to 'writing-mode' property.
         Marked orientation of emphasis marks under ''sideways-lr'' and ''sideways-rl'' undefined.
         (<a href="https://drafts.csswg.org/css-text-decor-3/issues-cr-2013#issue-10">Issue 10</a>, <a href="https://drafts.csswg.org/css-text-decor-3/issues-cr-2013#issue-20">Issue 20</a>)
-    <li>Added note to indicate that initial behavior of 'text-decoration-skip' with respect to leading and trailing spaces may change.
+    <li>Made ''[ right | left ]'' option of 'text-emphasis-position' optional.
+        (<a href="https://drafts.csswg.org/css-text-decor-3/issues-cr-2013#issue-17">Issue 17</a>)
+    <li>Changed text decoration to skip leading and trailing spaces.
         (<a href="https://drafts.csswg.org/css-text-decor-3/issues-cr-2013#issue-6">Issue 6</a>)
     <li>Fixed “Computed value” line for 'text-shadow'.
         (<a href="https://drafts.csswg.org/css-text-decor-3/issues-cr-2013#issue-7">Issue 7</a>)