diff --git a/assets/css/_partial/_single/_toc.scss b/assets/css/_partial/_single/_toc.scss
index e564a36a5..391b178e3 100644
--- a/assets/css/_partial/_single/_toc.scss
+++ b/assets/css/_partial/_single/_toc.scss
@@ -151,4 +151,8 @@
       translate: 100vw 0;
     }
   }
-}
\ No newline at end of file
+}
+
+html:has(#toc-dialog[open]) {
+  overflow: hidden;
+}