WPF Browser Control not displaying

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C#

WPF

Hello,
I'm developing an application which have to connect to internet, for this, i'm using built-in Browser control of WPF. To meet the theme of overall application, i modified the interface of the browser window also, but when i run, although the site opens in WPF Browser control, but it not appears.

<window x:class="SkltnApplication3.Browser" xmlns:x="#unknown">
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Browser" Height="600" Width="800" Background="Transparent" AllowsTransparency="True" WindowStyle="None" Loaded="Window_Loaded_1" >

    <Grid>
        <Border BorderThickness="0" Margin="10" CornerRadius="15" Background="Silver">
            <Border.BitmapEffect>
                <DropShadowBitmapEffect />
            </Border.BitmapEffect>
            <TextBox TextWrapping="Wrap" Name="tbPin" Margin="20,542,294,10"/>
            
        </Border>
        <WebBrowser Name="browserControl" Margin="25,52,25,0" Height="488" VerticalAlignment="Top" Focusable="True" ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.CanContentScroll="True" />
        <Button Margin="500,552,160,20" Content="Send" Name="btnSend"/>
        <Button Margin="650,552,25,20" Content="Refresh" Name="btnRefresh" Click="btnRefresh_Click"/>
        <Label Margin="25,25,65,548" Content="www.twitter.com" Name="lblURL" />
        <Button Margin="754,10,10,567" Name="btnExit" Content="X" Background="#FFB55050" FontWeight="ExtraBold" TextOptions.TextHintingMode="Animated" Click="btnExit_Click">
            <Button.Resources>
                <Style TargetType="{x:Type Border}">
                    <Setter Property="CornerRadius" Value="0, 15, 0, 0"></Setter>
                </Style>
            </Button.Resources>
        </Button>
    </Grid>
</Window>

The problem is in this XAML, when I remove

AllowsTransparency="True" WindowStyle="None"

, the browser appears. Kindly help me, is there a way to display it to meet my current interface, or i have to disable trasperency and windowStyle?
here is the image