MainPage.xaml
<Page
x:Class="UniversalAppTutorials.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:UniversalAppTutorials"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
>
<!--
Canvas
Defines an area within which you can explicitly
position child objects, using coordinates that
are relative to the Canvas area.
Canvas.ZIndex
Gets or sets the Z-order of an element when that
element is presented in its parent Canvas layout container.
-->
<Canvas Background="AliceBlue">
<Ellipse
Width="100"
Height="100"
Fill="Red"
Canvas.Left="100"
Canvas.Top="100"
Canvas.ZIndex="2"
/>
<Ellipse
Width="100"
Height="100"
Fill="Green"
Canvas.Left="150"
Canvas.Top="100"
Canvas.ZIndex="1"
/>
<Ellipse
Width="100"
Height="100"
Fill="Blue"
Canvas.Left="150"
Canvas.Top="150"
Canvas.ZIndex="0"
/>
<Ellipse
Width="100"
Height="100"
Fill="Yellow"
Canvas.Left="200"
Canvas.Top="200"
/>
<Ellipse
Width="100"
Height="100"
Fill="HotPink"
Canvas.Left="250"
Canvas.Top="250"
Canvas.ZIndex="1"
/>
</Canvas>
</Page>