Update app.py

app.py

@@ -132,7 +132,7 @@ def demo():
         flex-wrap: nowrap;
     }
     #column-left {
-        min-width: 40px;
+        min-width: 20px;
         max-width: 10%;
         margin-right: 10px;
     }
@@ -140,8 +140,8 @@ def demo():
         min-width: 200px;
         flex-grow: 1;
     }
-    @media (max-width: 400px) {
-        #column-left { min-width: 40px; }
+    @media (max-width: 250px) {
+        #column-left { min-width: 20px; }
         #column-right { min-width: 200px; }
     }
     """