Try this
<Style x:Key="Grid_ControlStyle" TargetType="Grid">
<Style.Resources>
<Style TargetType="TextBlock">
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="Margin" Value="3"/>
<Setter Property="Background" Value="Red" />
</Style>
<Style TargetType="TextBox">
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="Margin" Value="3"/>
</Style>
<Style TargetType="Button">
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="Margin" Value="3"/>
</Style>
</Style.Resources>
</Style>