<Page
x:Class="Application1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:controls="clr-namespace:Windows.UI.Xaml.Controls;assembly=CSharpXamlForHtml5"
mc:Ignorable="d">
<Canvas>
<controls:TextBlock Text="Hello World!" x:Name="TextBlock1" controls:Canvas.Left="20" controls:Canvas.Top="30"/>
</Canvas>
</Page>
This is the out of the box empty project? VS2017