<Window.Resources>
<LinearGradientBrush x:Key="a" StartPoint="0,0" EndPoint="1,1">
<GradientStop Color="LightBlue" Offset="0.0"/>
<GradientStop Color="LightBlue" Offset="1.0"/>
</LinearGradientBrush>
<Style x:Key="b" TargetType="TextBox">
<Setter Property="AcceptsReturn" Value="True"/>
<Setter Property="TextWrapping" Value="Wrap"/>
<Setter Property="VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="Margin" Value="10"/>
<Setter Property="Padding" Value="8"/>
<Setter Property="Background" Value="White"/>
<Setter Property="BorderBrush" Value="White"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Height" Value="50"/>
<Setter Property="FontSize" Value="11"/>
<Style.Triggers>
<Trigger Property="IsFocused" Value="True">
<Setter Property="Height" Value="220"/>
<Setter Property="FontSize" Value="18"/>
<Setter Property="Background" Value="White"/>
<Setter Property="BorderBrush" Value="Blue"/>
<Setter Property="BorderThickness" Value="2"/>
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="c" TargetType="TextBlock">
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Margin" Value="0,10"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="FontSize" Value="14"/>
</Style>
</Window.Resources>