diff --git a/src/main/content/antora_ui/src/sass/nav.scss b/src/main/content/antora_ui/src/sass/nav.scss
index 8cc0fde799..5ccb4ce78b 100644
--- a/src/main/content/antora_ui/src/sass/nav.scss
+++ b/src/main/content/antora_ui/src/sass/nav.scss
@@ -242,9 +242,6 @@ html.is-clipped--nav {
       margin-left: calc(
         -1 * (var(--TOC-indention-first-level) + var(--TOC-indention))
       );
-      margin-right: calc(
-        -1 * (var(--TOC-indention-first-level) + var(--TOC-indention))
-      );
       padding-left: calc(
         var(--TOC-indention-first-level) + var(--TOC-indention) -
           var(--TOC-orange-border-width)
@@ -261,9 +258,6 @@ html.is-clipped--nav {
       margin-left: calc(
         -1 * (var(--TOC-indention-first-level) + 2 * var(--TOC-indention))
       );
-      margin-right: calc(
-        -1 * (var(--TOC-indention-first-level) + 2 * var(--TOC-indention))
-      );
       padding-left: calc(
         var(--TOC-indention-first-level) + 2 * var(--TOC-indention) -
           var(--TOC-orange-border-width)
@@ -280,9 +274,6 @@ html.is-clipped--nav {
       margin-left: calc(
         -1 * (var(--TOC-indention-first-level) + 3 * var(--TOC-indention))
       );
-      margin-right: calc(
-        -1 * (var(--TOC-indention-first-level) + 3 * var(--TOC-indention))
-      );
       padding-left: calc(
         var(--TOC-indention-first-level) + 3 * var(--TOC-indention) -
           var(--TOC-orange-border-width)
@@ -299,9 +290,6 @@ html.is-clipped--nav {
       margin-left: calc(
         -1 * (var(--TOC-indention-first-level) + 4 * var(--TOC-indention))
       );
-      margin-right: calc(
-        -1 * (var(--TOC-indention-first-level) + 4 * var(--TOC-indention))
-      );
       padding-left: calc(
         var(--TOC-indention-first-level) + 4 * var(--TOC-indention) -
           var(--TOC-orange-border-width)