Grammar fix - it accidentally disallowed r-g(at top left, ...)

Author: tabatkins

css3-images/Overview.html

@@ -1015,7 +1015,9 @@ <h4 class=no-toc id=radial-gradient-syntax><span class=secno>4.2.1. </span>
 
   <pre>
 &lt;radial-gradient> = radial-gradient(
-  [ [ &lt;shape> || &lt;size> ] [ at &lt;position> ]? ,]?
+  [ [ &lt;shape> || &lt;size> ] [ at &lt;position> ]? , |
+    at &lt;position>, 
+  ]?
   &lt;color-stop> [ , &lt;color-stop> ]+
 )</pre>
 
@@ -1151,7 +1153,8 @@ <h4 class=no-toc id=radial-gradient-syntax><span class=secno>4.2.1. </span>
 &lt;radial-gradient> = radial-gradient(
   [ [ circle               || &lt;length> ]                          [ at &lt;position> ]? , | 
     [ ellipse              || [ &lt;length> | &lt;percentage> ]{2} ]    [ at &lt;position> ]? , |
-    [ [ circle | ellipse ] || &lt;extent-keyword> ]                  [ at &lt;position> ]? ,
+    [ [ circle | ellipse ] || &lt;extent-keyword> ]                  [ at &lt;position> ]? , |
+    at &lt;position> ,
   ]?
   &lt;color-stop> [ , &lt;color-stop> ]+
 )

css3-images/Overview.src.html

@@ -622,7 +622,9 @@ <h4 class='no-toc' id='radial-gradient-syntax'>
 
 	<pre>
 &lt;radial-gradient> = radial-gradient(
-  [ [ &lt;shape> || &lt;size> ] [ at &lt;position> ]? ,]?
+  [ [ &lt;shape> || &lt;size> ] [ at &lt;position> ]? , |
+    at &lt;position>, 
+  ]?
   &lt;color-stop> [ , &lt;color-stop> ]+
 )</pre>
 
@@ -717,7 +719,8 @@ <h4 class='no-toc' id='radial-gradient-syntax'>
 &lt;radial-gradient> = radial-gradient(
   [ [ circle               || &lt;length> ]                          [ at &lt;position> ]? , | 
     [ ellipse              || [ &lt;length> | &lt;percentage> ]{2} ]    [ at &lt;position> ]? , |
-    [ [ circle | ellipse ] || &lt;extent-keyword> ]                  [ at &lt;position> ]? ,
+    [ [ circle | ellipse ] || &lt;extent-keyword> ]                  [ at &lt;position> ]? , |
+    at &lt;position> ,
   ]?
   &lt;color-stop> [ , &lt;color-stop> ]+
 )