PCL2-NewsHomepage/Templates/LatestVersionAnimation.xaml

<StackPanel.Triggers>
<EventTrigger RoutedEvent="StackPanel.Loaded">
    <BeginStoryboard>
      <Storyboard>
        <DoubleAnimation Storyboard.TargetName="latest_{$randomname}" Storyboard.TargetProperty="Width" From="0" To="0" Duration="0:0:0.1" />
        <DoubleAnimation BeginTime="0:0:0.1" Storyboard.TargetName="latest_{$randomname}" Storyboard.TargetProperty="Width" From="0" To="220" Duration="0:0:0.15" />
        <DoubleAnimation BeginTime="0:0:0.5" Storyboard.TargetName="latest_{$randomname}" Storyboard.TargetProperty="Width" From="220" To="190" Duration="0:0:0.1" />
      </Storyboard>
    </BeginStoryboard>
  </EventTrigger>
</StackPanel.Triggers>