[css-backgrounds] Address example inconsistencies noted in <http://lists.w3.org/Archives/Public/www-style/2014Feb/0277.html>

Author: fantasai

css-backgrounds/Overview.html

@@ -1910,8 +1910,8 @@ <h3 id=the-background><span class=secno>3.10. </span>Backgrounds Shorthand:
 body {
     background-color: red;
     background-position: 0% 0%;
-    background-size: auto auto;
-    background-repeat: repeat repeat;
+    background-size: auto;
+    background-repeat: repeat;
     background-clip: border-box;
     background-origin: padding-box;
     background-attachment: scroll;
@@ -1925,7 +1925,7 @@ <h3 id=the-background><span class=secno>3.10. </span>Backgrounds Shorthand:
     background-color: gray;
     background-position: 40% 50%;
     background-size: 10em 10em;
-    background-repeat: round round;
+    background-repeat: round;
     background-clip: border-box;
     background-origin: border-box;
     background-attachment: fixed;
@@ -1975,7 +1975,7 @@ <h3 id=the-background><span class=secno>3.10. </span>Backgrounds Shorthand:
    <pre>
 background-image:      url(a.png),  url(b.png),          url(c.png);
 background-position:   top left,    center,              top left;
-background-repeat:     no-repeat,   no-repeat no-repeat, repeat;
+background-repeat:     no-repeat,   no-repeat,           repeat;
 background-clip:       border-box,  border-box,          border-box;
 background-origin:     padding-box, padding-box,         padding-box;
 background-size:       auto auto,   100% 100%,           auto auto;

css-backgrounds/Overview.src.html

@@ -1291,8 +1291,8 @@ <h3 id="the-background">Backgrounds Shorthand: the 'background' property</h3>
 body {
     background-color: red;
     background-position: 0% 0%;
-    background-size: auto auto;
-    background-repeat: repeat repeat;
+    background-size: auto;
+    background-repeat: repeat;
     background-clip: border-box;
     background-origin: padding-box;
     background-attachment: scroll;
@@ -1306,7 +1306,7 @@ <h3 id="the-background">Backgrounds Shorthand: the 'background' property</h3>
     background-color: gray;
     background-position: 40% 50%;
     background-size: 10em 10em;
-    background-repeat: round round;
+    background-repeat: round;
     background-clip: border-box;
     background-origin: border-box;
     background-attachment: fixed;
@@ -1356,7 +1356,7 @@ <h3 id="the-background">Backgrounds Shorthand: the 'background' property</h3>
 <pre>
 background-image:      url(a.png),  url(b.png),          url(c.png);
 background-position:   top left,    center,              top left;
-background-repeat:     no-repeat,   no-repeat no-repeat, repeat;
+background-repeat:     no-repeat,   no-repeat,           repeat;
 background-clip:       border-box,  border-box,          border-box;
 background-origin:     padding-box, padding-box,         padding-box;
 background-size:       auto auto,   100% 100%,           auto auto;