Edit C:\Windows\SystemResources\Windows.UI.Search\XAMLTemplates\Web.RichAlgo_Home_8_1

Edit C:\Windows\SystemResources\Windows.UI.Search\XAMLTemplates\Web.RichAlgo_Home_8_1_RTM-b58c3737.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:tm="using:SearchUI.TemplateManager"
                    x:Key="Web.RichAlgo_Home_8_1_RTM">
    <Style x:Key="Horizontal"
           TargetType="GridViewItem"
           BasedOn="{Binding Source={CustomResource Resources.Shared.SerpGridViewItem.Horizontal}}">
        <Setter Property="VariableSizedWrapGrid.ColumnSpan"
                Value="1" />
        <Setter Property="VariableSizedWrapGrid.RowSpan"
                Value="2" />
    </Style>
    <Style x:Key="HorizontalLarge"
           TargetType="GridViewItem"
           BasedOn="{Binding Source={CustomResource Resources.Shared.SerpGridViewItem.HorizontalLarge}}">
        <Setter Property="VariableSizedWrapGrid.ColumnSpan"
                Value="1" />
        <Setter Property="VariableSizedWrapGrid.RowSpan"
                Value="3" />
    </Style>
    <Style x:Key="Vertical"
           TargetType="GridViewItem"
           BasedOn="{Binding Source={CustomResource Resources.Shared.SerpGridViewItem.Vertical}}">
        <Setter Property="VariableSizedWrapGrid.ColumnSpan"
                Value="1" />
        <Setter Property="VariableSizedWrapGrid.RowSpan"
                Value="12" />
    </Style>
    <Style x:Key="VerticalLarge"
           TargetType="GridViewItem"
           BasedOn="{Binding Source={CustomResource Resources.Shared.SerpGridViewItem.VerticalLarge}}">
        <Setter Property="VariableSizedWrapGrid.ColumnSpan"
                Value="1" />
        <Setter Property="VariableSizedWrapGrid.RowSpan"
                Value="15" />
    </Style>
    <Style x:Key="VerticalNarrow"
           TargetType="GridViewItem"
           BasedOn="{CustomResource Resources.Shared.SerpGridViewItem.VerticalNarrow}">
        <Setter Property="VariableSizedWrapGrid.ColumnSpan"
                Value="1" />
        <Setter Property="VariableSizedWrapGrid.RowSpan"
                Value="12" />
    </Style>
</ResourceDictionary>

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