diff --git a/css-gaps-1/Overview.bs b/css-gaps-1/Overview.bs
index d6698a10ff11..4f954286cf4b 100644
--- a/css-gaps-1/Overview.bs
+++ b/css-gaps-1/Overview.bs
@@ -682,7 +682,7 @@ Adjusting gap decoration endpoints: The 'rule-inset' properties
Name: column-rule-inset, row-rule-inset
- Value: <> [ <> ]?
+ Value: <> <>? [/ <> <>?]?
Applies to: Same as 'column-rule-edge-inset', 'column-rule-interior-inset', 'row-rule-edge-inset', and 'row-rule-interior-inset'
@@ -692,7 +692,11 @@ Adjusting gap decoration endpoints: The 'rule-inset' properties
Applies to: Same as 'column-rule-inset' and 'row-rule-inset'
- Sets the 'column-rule-inset' and 'row-rule-inset' properties to the same value.
+ Sets the 'column-rule-inset' and 'row-rule-inset' properties to the same value. Syntax is as follows:
+ ```
+ edge-start edge-end? [/ interior-start interior-end?]?
+ ```
+ where each of ''edge-start'', ''edge-end'', ''interior-start'', and ''interior-end'' are <> values.
Name: column-rule-inset-start, row-rule-inset-start
@@ -1571,4 +1575,5 @@ Changes since the 1
Issue 12848,
Issue 8402)
Added a paragraph clarifying that gap decorations are not drawn where gaps are suppressed due to fragment breaks.
+ Corrected syntax errors for the inset shorthands.