Create Rounded corner button on wpf

<Style TargetType="Button">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border CornerRadius="6" Background="{TemplateBinding Background}"
                                BorderThickness="1">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center">
                            </ContentPresenter>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
  </Style>