ShrlAlgoToolkit/WPFluent.Gallery/Pages/ButtonPage.xaml

<Page x:Class="WPFluent.Gallery.Pages.Buttons"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:local="clr-namespace:WPFluent.Gallery.Pages"
      mc:Ignorable="d"
      Title="Buttons" Height="450" Width="800">
    <Grid>
        <StackPanel>
            <StackPanel Orientation="Horizontal">
                <Button Content="Button"></Button>
                <Button Content="Button"></Button>
            </StackPanel>
        </StackPanel>
    </Grid>
</Page>