<Window x:Class="WPF_20_ReusableStyleResources.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <!-- <Style TargetType="Button"> -->
        <!--     <Setter Property="Width" Value="100" /> -->
        <!--     <Setter Property="Height" Value="40" /> -->
        <!--     <Setter Property="FontSize" Value="20" /> -->
        <!-- </Style> -->

        <Style TargetType="Button" x:Key="ConfirmationStyle">
            <Setter Property="Width" Value="100" />
            <Setter Property="Height" Value="40" />
            <Setter Property="FontSize" Value="20" />
            <Setter Property="Foreground" Value="LimeGreen" />
            <Setter Property="Content" Value="OK" />
        </Style>
    </Window.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition Height="60" />
        </Grid.RowDefinitions>

        <StackPanel VerticalAlignment="Center">
            <!-- <StackPanel.Resources> -->
            <!--     <Style TargetType="TextBox"> -->
            <!--         <Setter Property="Width" Value="200" /> -->
            <!--         <Setter Property="Height" Value="40" /> -->
            <!--         <Setter Property="FontSize" Value="20" /> -->
            <!--         <Setter Property="FontWeight" Value="Light" /> -->
            <!--     </Style> -->
            <!-- </StackPanel.Resources> -->

            <TextBox Width="250" />
            <TextBox />
            <TextBox />
            <Button Margin="0 5 0 0">Normal</Button>
            <Button Margin="0 5 0 0">Normal</Button>
        </StackPanel>

        <Grid Grid.Row="1">
            <Button Style="{StaticResource ConfirmationStyle}" />
        </Grid>
    </Grid>
</Window>