diff --git a/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
index 54dbba1..7fddd0b 100644
--- a/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
@@ -101,7 +101,6 @@
                         Theme="{DynamicResource GroupBox}">
                         <Grid
                             VerticalAlignment="Top"
-                            Background="{Binding}"
                             ColumnDefinitions="Auto, *"
                             RowDefinitions="*,*,*,*,*,*,*,*">
                             <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>
diff --git a/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
index 019faf5..1125ce4 100644
--- a/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
@@ -102,7 +102,6 @@
                 Theme="{DynamicResource GroupBox}">
                 <Grid
                     VerticalAlignment="Top"
-                    Background="{Binding}"
                     ColumnDefinitions="Auto, *"
                     RowDefinitions="*,*,*,*,*,*,*,*">
                     <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>