xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Animation Speed Example" Height="240" Width="410">
Height="20" HorizontalAlignment="Left" />
Content="Start Animations" Width="100">
Storyboard.TargetName="rect4" Storyboard.TargetProperty="Width"
From="20" To="400" Duration="0:0:10" AccelerationRatio="0.5" />