diff --git a/nx01-x4o-maisdoc/src/main/resources/org/x4o/maisdoc/theme/jdk7/stylesheet.css b/nx01-x4o-maisdoc/src/main/resources/org/x4o/maisdoc/theme/jdk7/stylesheet.css
index e1018ad..e52074d 100644
--- a/nx01-x4o-maisdoc/src/main/resources/org/x4o/maisdoc/theme/jdk7/stylesheet.css
+++ b/nx01-x4o-maisdoc/src/main/resources/org/x4o/maisdoc/theme/jdk7/stylesheet.css
@@ -87,6 +87,6 @@ html[data-theme="dark"] {
 	--invalid-tag-text-color: #000000;
 	
 	.overviewSummary caption, .packageSummary caption, .contentContainer ul.blockList li.blockList caption, .summary caption, .classUseContainer caption, .constantValuesContainer caption {
-		border-left: solid 1px var(--table-border-color);
+		border-left: solid 1px var(--body-background-color);
 	}
 }