Basic UI Style - Tutorial App Lector RSS

#2.xml

<common:LayoutAwarePage
    x:Name="pageRoot"
    x:Class="RSSJuanK4Blog.View.RssMainView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:RSSJuanK4Blog.View"
    xmlns:common="using:RSSJuanK4Blog.Common"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    xmlns:vm="using:RSSJuanK4Blog.ViewModel"
    >

    <Page.Resources>
        <x:String x:Key="AppName">Blog Ideas de un Conejo</x:String>
        <vm:RssMainViewModel x:Key="ViewModel" x:Name="ViewModel" 
                        FeedUrlString="http://blogs.msdn.com/b/juank/rss.aspx"/>
    </Page.Resources>

    <Grid Style="{StaticResource LayoutRootStyle}">
        <Grid.RowDefinitions>
            <RowDefinition Height="140"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100"/>
            <ColumnDefinition Width="500"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>

        <TextBlock x:Name="pageTitle" 
            Grid.Column="1"  Grid.Row="0"
            Text="{StaticResource AppName}" 
            Style="{StaticResource Title-Main-Style}"
            />
        <Image Style="{StaticResource Logo-Style}" Source="ms-appx:///Assets/img/ideas-logo.png"/>

        <TextBlock Grid.Column="2" Grid.Row="0" Text="Titulo de prueba" 
            Style="{StaticResource Title-Post-Style}" />

        <WebView x:Name="wvBlogContent" 
            Grid.Column="2" Grid.Row="1" 
            Style="{StaticResource WebView-Style}"  />

        <ListView x:Name="lvwBlogPosts" Grid.ColumnSpan="2" Grid.Row="1" 
            Style="{StaticResource Lista-Posts-Style}" 
            ItemTemplate="{StaticResource Post-List-ItemTemplate}" >
        </ListView>

    </Grid>
</common:LayoutAwarePage>

gistfile1.xml

<Application
	x:Class="RSSJuanK4Blog.App"
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	xmlns:local="using:RSSJuanK4Blog">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Common/StandardStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>
            <Style x:Key="Title-Main-Style" TargetType="TextBlock">
                <Setter Property="FontSize" Value="45"/>
                <Setter Property="FontWeight" Value="Light"/>
                <Setter Property="TextWrapping" Value="Wrap" />
                <Setter Property="Margin" Value="10" />
                <Setter Property="HorizontalAlignment" Value="Stretch"  />
                <Setter Property="VerticalAlignment" Value="Center"/>
            </Style>
            <Style x:Key="Logo-Style" TargetType="Image">
                <Setter Property="Margin" Value="10"/>
            </Style>
            <Style x:Key="Title-Post-Style" TargetType="TextBlock" 
                    BasedOn="{StaticResource Title-Main-Style}" >
                <Setter Property="FontSize" Value="30"/>
                <Setter Property="TextTrimming" Value="WordEllipsis"/>
                <Setter Property="HorizontalAlignment" Value="Stretch"/>
            </Style>
            <Style x:Key="WebView-Style" TargetType="WebView">
                <Setter Property="Margin" Value="10,0"/>
                <Setter Property="Visibility" Value="Collapsed"/>
                <Setter Property="CacheMode" Value="BitmapCache"/>
            </Style>
            <Style x:Key="Lista-Posts-Style" TargetType="ListView">
                <Setter Property="Margin" Value="10,0"/>
            </Style>
            <Style x:Key="Image-Post-List" TargetType="Image">
                <Setter Property="Margin" Value="5"/>
                <Setter Property="Width" Value="120"/>
                <Setter Property="Height" Value="120"/>
            </Style>
            <Style x:Key="Title-PostList-Style" TargetType="TextBlock">
                <Setter Property="Width" Value="350"/>
                <Setter Property="Height" Value="Auto"/>
                <Setter Property="Margin" Value="0,5,5,10"/>
                <Setter Property="FontSize" Value="24"/>
                <Setter Property="TextTrimming" Value="WordEllipsis"/>
            </Style>
            <Style x:Key="Summary-PostList-Style" TargetType="TextBlock" 
                   BasedOn="{StaticResource Title-PostList-Style}">
                <Setter Property="FontSize" Value="14"/>
            </Style>
            <DataTemplate x:Key="Post-List-ItemTemplate">
                <StackPanel Orientation="Horizontal">
                    <Image Style="{StaticResource Image-Post-List}" 
                Source="ms-appx:///Assets/img/Picture.png"/>
                    <StackPanel>
                        <TextBlock TextWrapping="Wrap" 
                    Text="Titulo de Prueba en multiples lineas" 
                    Style="{StaticResource Title-PostList-Style}"/>
                        <TextBlock TextWrapping="Wrap" 
                    Text="Titulo de Prueba en multiples lineas., Titulo de Prueba en multiples lineas" 
                    Style="{StaticResource Summary-PostList-Style}"/>
                    </StackPanel>
                </StackPanel>
            </DataTemplate>
        </ResourceDictionary>
    </Application.Resources>
</Application>