diff --git a/app.py b/app.py
index 50a25ab..5e58720 100644
--- a/app.py
+++ b/app.py
@@ -480,10 +480,6 @@
         # on_change=lambda: None  # Ensure state updates
     )
 
-    # Update session state from slider
-    # if frame_idx != st.session_state[frame_key]:
-    #     st.session_state[frame_key] = frame_idx
-
     # Display image with custom width based on global zoom level
     try:
         img = Image.open(images[frame_idx])
@@ -498,7 +494,7 @@
         )
 
         # Arrow buttons for frame navigation (画像の右下に配置)
-        col1, col2, col3 = container.columns([4, 1, 1])
+        col1, col2, col3 = container.columns([4, 0.5, 0.5], gap="small")
         with col1:
             st.write("")  # Spacer
         with col2: