<local:MyPageRight
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:PCL"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d" x:Class="PCL.PageSpeedRight"
    PanScroll="{Binding ElementName=PanBack}">
    <local:MyScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled" x:Name="PanBack">
        <StackPanel x:Name="PanMain" Margin="25,25,25,10" Grid.IsSharedSizeScope="True" />
    </local:MyScrollViewer>
</local:MyPageRight>