diff --git a/css-values-5/Overview.bs b/css-values-5/Overview.bs
index 7d42758215e..5dbae7e9a31 100644
--- a/css-values-5/Overview.bs
+++ b/css-values-5/Overview.bs
@@ -1622,9 +1622,9 @@ Ian's proposal:
Note that the default value need not be of the type given.
- For instance, if the type required of the attribute by the author is '''',
+ For instance, if the type required of the attribute by the author is ''<number px>'',
the default could still be auto,
- like in ''width: attr(size , auto);''.
+ like in ''width: attr(size <number px>, auto);''.
@@ -1738,7 +1738,7 @@ Security
However, using ''attr()'' for other purposes is fine,
even if the usage is near a url:
- * ''background-image: image("foo.jpg", attr(bgcolor ))'' is fine;
+ * ''background-image: image("foo.jpg", attr(bgcolor <color>))'' is fine;
the ''attr()'' is providing a fallback color,
and the <> isn't [=attr()-tainted=].