don't allow the toc sidebar to grow beyond the bounds of the content column

diff --git a/src/css/main.css b/src/css/main.css
index b8ea66c..c9b1651 100644 (file)
--- a/src/css/main.css
+++ b/src/css/main.css
@@ -20,7 +20,7 @@
   }
 
   aside.toc.sidebar {
-    flex: 1 0 var(--toc-width);
+    flex: 0 0 var(--toc-width);
   }
 }