From 2bcd34f511084fa34eed78661484fd3e6412f63a Mon Sep 17 00:00:00 2001
From: Carson <cpsievert1@gmail.com>
Date: Wed, 6 Dec 2023 16:30:15 -0600
Subject: [PATCH] Close #858. Fix bug in fillable_mobile logic

---
 shiny/ui/_page.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/shiny/ui/_page.py b/shiny/ui/_page.py
index 98eee94cd..0d2b0aa85 100644
--- a/shiny/ui/_page.py
+++ b/shiny/ui/_page.py
@@ -306,7 +306,7 @@ def page_fillable(
         # first set of attributes.
         FILLABLE_CONTAINTER_ATTRS,
         {"class": "bslib-page-fill bslib-gap-spacing", "style": style},
-        {"class": "bslib-flow-mobile"} if fillable_mobile else None,
+        {"class": "bslib-flow-mobile"} if not fillable_mobile else None,
         attrs,
         *children,
         components_dependency(),