MainPage.xaml

<Page
    x:Class="App1.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App1"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Page.Resources>
        <local:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
    </Page.Resources>
    <Grid Background="White">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <ProgressRing HorizontalAlignment="Center" Grid.ColumnSpan="6" Margin="0,0,0,0" VerticalAlignment="Center" IsActive="{Binding Sections.IsNotCompleted}" Height="70" Width="70"/>
        <Pivot Name="MainPivot" Grid.ColumnSpan="6" Visibility="{Binding Sections.IsSuccessfullyCompleted, Converter={StaticResource BooleanToVisibilityConverter}}" SelectionChanged="MainPivot_SelectionChanged" Margin="0,200,0,0" ItemsSource="{Binding Sections.Result}">
            <Pivot.HeaderTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Header}" Margin="20,0"/>
                </DataTemplate>
            </Pivot.HeaderTemplate>
            <Pivot.ItemTemplate>
                <DataTemplate>
                    <Grid>
                        <ProgressBar HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Visibility="{Binding Content.IsNotCompleted, Converter={StaticResource BooleanToVisibilityConverter}}" IsIndeterminate="True" Width="100"/>
                        <WebView local:StringWebViewExtension.HTML="{Binding Content.Result}"/>
                    </Grid>
                </DataTemplate>
            </Pivot.ItemTemplate>
        </Pivot>
        
        <Image Name="Logo" Source="Assets/logo_nase2.png" Grid.Column="2" Grid.ColumnSpan="2" VerticalAlignment="Top" Margin="0,50,0,0" />
    </Grid>
</Page>