diff --git a/src/Semi.Avalonia/Controls/Slider.axaml b/src/Semi.Avalonia/Controls/Slider.axaml
index 49f0c7b..561a182 100644
--- a/src/Semi.Avalonia/Controls/Slider.axaml
+++ b/src/Semi.Avalonia/Controls/Slider.axaml
@@ -179,9 +179,9 @@
                                 MinWidth="{DynamicResource SliderVerticalWidth}"
                                 RowDefinitions="*,Auto,Auto">
                                 <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="{DynamicResource SliderPreContentMargin}" />
                                     <ColumnDefinition Width="Auto" />
-                                    <ColumnDefinition Width="{DynamicResource SliderPostContentMargin}" />
+                                    <ColumnDefinition Width="Auto" />
+                                    <ColumnDefinition Width="Auto" />
                                 </Grid.ColumnDefinitions>
                                 <TickBar
                                     Name="LeftTickBar"