diff --git a/classifier/css/layout.css b/classifier/css/layout.css
index e12b9ae..3665a0d 100644
--- a/classifier/css/layout.css
+++ b/classifier/css/layout.css
@@ -103,10 +103,13 @@
     font-size: 0.8rem;
 }
 
-/* Resize Handle */
+/* Resize Handle — sits just to the RIGHT of the split (past the 1px
+   border-right), overhanging the right pane's edge, so its grab area + hover
+   highlight never cover the folder tree's vertical scrollbar (which lives on the
+   left pane's right edge). */
 .resize-handle {
     position: absolute;
-    right: 0;
+    right: -6px;
     top: 0;
     bottom: 0;
     width: 5px;