Animations.xaml

    <Window.Resources>
        <Style TargetType="Button">
            <Setter Property="Padding" Value="6,4" />
            <Setter Property="Background" Value="#0073CF" />
            <Setter Property="Foreground" Value="White" />
            <Setter Property="BorderBrush" Value="#0073CF" />
            <Setter Property="BorderThickness" Value="2" />
            <Setter Property="HorizontalContentAlignment" Value="Center" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border
                            Background="{TemplateBinding Background}"
                            BorderThickness="0"
                            RenderTransformOrigin="0.5,0.5">
                            <Border.RenderTransform>
                                <ScaleTransform x:Name="ScaleTransform" ScaleX="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:Zoom.Value)}" ScaleY="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:Zoom.Value)}" />
                            </Border.RenderTransform>
                            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                                <ContentPresenter
                                    Margin="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                                    HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                    VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
                            </Border>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Style.Triggers>
                <Trigger Property="IsPressed" Value="True">
                    <Setter Property="Background" Value="#737373" />
                    <Setter Property="Foreground" Value="Black" />
                    <Trigger.EnterActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetProperty="(local:Zoom.Value)"
                                    To="0.98"
                                    Duration="0:0:0.2" />
                            </Storyboard>
                        </BeginStoryboard>
                    </Trigger.EnterActions>
                    <Trigger.ExitActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetProperty="(local:Zoom.Value)"
                                    To="1"
                                    Duration="0:0:0.2" />
                            </Storyboard>
                        </BeginStoryboard>
                    </Trigger.ExitActions>
                </Trigger>
                <MultiTrigger>
                    <MultiTrigger.Conditions>
                        <Condition Property="IsMouseOver" Value="True" />
                        <Condition Property="IsPressed" Value="False" />
                    </MultiTrigger.Conditions>
                    <Setter Property="BorderBrush" Value="#737373" />
                    <MultiTrigger.EnterActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetProperty="(local:Zoom.Value)"
                                    To="1.02"
                                    Duration="0:0:0.2" />
                            </Storyboard>
                        </BeginStoryboard>
                    </MultiTrigger.EnterActions>
                    <MultiTrigger.ExitActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetProperty="(local:Zoom.Value)"
                                    To="1"
                                    Duration="0:0:0.2" />
                            </Storyboard>
                        </BeginStoryboard>
                    </MultiTrigger.ExitActions>
                </MultiTrigger>

            </Style.Triggers>
        </Style>
    </Window.Resources>

    <StackPanel>
        <Button
            Width="200"
            Height="100"
            Margin="5"
            HorizontalAlignment="Left"
            VerticalAlignment="Top">
            Activate
        </Button>
        <Button
            Width="200"
            Height="100"
            Margin="5"
            HorizontalAlignment="Left"
            VerticalAlignment="Top">
            Activate
        </Button>
    </StackPanel>