diff --git a/home-manager/progs/niri.nix b/home-manager/progs/niri.nix
index 160e13b..5645524 100644
--- a/home-manager/progs/niri.nix
+++ b/home-manager/progs/niri.nix
@@ -89,6 +89,22 @@
             };
         }
         { clip-to-geometry = true; }
+        {
+          matches = [
+            {
+              app-id = "Zen Browser$";
+              title = "^Picture-in-Picture$";
+            }
+          ];
+
+          open-floating = true;
+          default-column-width = {
+            fixed = 480;
+          };
+          default-window-height = {
+            fixed = 270;
+          };
+        }
       ];
 
       # XF86AudioMedia      allow-when-locked=true { spawn "playerctl" "play-pause"; }