<Style x:Key = "ButtonStyle" TargetType = "Button">
            <Setter Property = "Background" Value = "#0D4E80" />
            <Setter Property ="Foreground" Value="White"/>
            <Style.Triggers>
                <Trigger Property = "IsMouseOver" Value = "True">
                    <Setter Property = "Background" Value = "#297ebf" />
                </Trigger>
            </Style.Triggers>
        </Style>