<Canvas
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	Width="100" Height="100">
	<Rectangle Width="" Height="40" Canvas.Top="10" Canvas.Left="10" Fill="Red" />
	<Rectangle Width="80" Height="40" Canvas.Top="50" Canvas.Left="10" Fill="Blue" />
</Canvas>

