diff --git a/libs/ui/source/default_element_factory.cpp b/libs/ui/source/default_element_factory.cpp
index 394f508e..99f9d7f5 100644
--- a/libs/ui/source/default_element_factory.cpp
+++ b/libs/ui/source/default_element_factory.cpp
@@ -53,7 +53,19 @@ namespace psemek::ui
 
 			geom::box<float, 2> size_constraints() const override
 			{
-				return {{{100.f, 200.f}, {50.f, 100.f}}};
+				auto sc = element::size_constraints();
+
+				if (label())
+					sc = label()->size_constraints();
+
+				if (auto st = style())
+				{
+					float extra = 2.f * (st->border_width + st->inner_margin);
+					sc[0] += extra;
+					sc[1] += extra;
+				}
+
+				return sc;
 			}
 
 		private: