wpf easing bouncing in/out animation

Hey all I am pretty new at creating a WPF in VS 2013. I am wanting this box to bounce & ease in/out.

The current code i have:

<BeginStoryboard x:Name="FadeInStoryBoard"><Storyboard><DoubleAnimation Storyboard.TargetName="ZWindow" From="0.01" To="0.85" Storyboard.TargetProperty="Opacity" Duration="0:0:0.8"><DoubleAnimation.EasingFunction><ElasticEase Oscillations="5" Springiness="5" EasingMode="EaseInOut"/></DoubleAnimation.EasingFunction></DoubleAnimation><DoubleAnimation Storyboard.TargetName="ZWindow" From="0.85" To="0" Storyboard.TargetProperty="Opacity" Duration="0:0:0.8" BeginTime="0:0:20" Name="boxFader"><DoubleAnimation.EasingFunction><ElasticEase Oscillations="3" Springiness="5" EasingMode="EaseInOut"/></DoubleAnimation.EasingFunction></DoubleAnimation></Storyboard></BeginStoryboard>

It currently looks very odd when showing due to it fading in/out. How can i take off the fading and just have it fade in when bouncing in/out?