kfc1/KFC/MainWindow.xaml

<Window x:Class="KFC.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:KFC"
        mc:Ignorable="d"
        Title="MainWindow" Height="750" Width="500" ResizeMode="NoResize" WindowStyle="None" WindowStartupLocation="CenterScreen">
    <Grid>
        <Image Source="KFC4.jpg" Stretch="Fill" Margin="0,218,0,198.4" />
        <Image Source="KFC3.jpg" Stretch="Fill" Margin="0,0,0,478.4" />
        <Image Source="KFC2.jpg" Stretch="Fill" Margin="0,514,0,0.4"/>
        <Image Source="1KFC.jpeg" Margin="4,4,368,627.4"/>
        <Button x:Name="btn_order" Content="Сделать заказ" FontSize="34" FontFamily="Century Gothic" Background="Yellow" Opacity="0.4" Margin="2,384,2,289.4" Click="Button_Order"/>
        <Border x:Name="border" Background="#7F000000" Visibility="Hidden"/>

    </Grid>
</Window>