LoadedToTheGills/LoadedToTheGills/MainWindow.xaml

<Window x:Class="LoadedToTheGills.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:LoadedToTheGills"
        mc:Ignorable="d"
        Title="MainWindow" WindowStartupLocation="CenterScreen" Height="383" Width="290">
    <Grid>
        <Rectangle Fill="#FF3F3FA8" HorizontalAlignment="Left" Height="63" Stroke="Black" VerticalAlignment="Top" Width="282"/>
        <Label Content="Авторизация" FontFamily="Times New Roman" FontSize="24" Margin="73,10,38,289" BorderBrush="Black" Foreground="White">
            <Label.Effect>
                <DropShadowEffect/>
            </Label.Effect>
        </Label>
        <Rectangle Fill="#FF3F3FA8" HorizontalAlignment="Left" Height="63" Stroke="Black" VerticalAlignment="Bottom" Width="282" Margin="0,0,0,-3"/>
        <Label Content="Введите логин:" HorizontalAlignment="Left" Height="32" Margin="63,68,0,0" VerticalAlignment="Top" Width="153" FontFamily="Times New Roman" FontSize="20"/>
        <TextBox x:Name="txtBox1" HorizontalAlignment="Left" Height="32" Margin="10,105,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="255" FontFamily="Times New Roman" FontSize="20"/>
        <Label Content="Введите пароль:" HorizontalAlignment="Left" Height="32" Margin="63,142,0,0" VerticalAlignment="Top" Width="153" FontFamily="Times New Roman" FontSize="20"/>
        <PasswordBox x:Name="passBox1" HorizontalAlignment="Left" Margin="10,179,0,0" VerticalAlignment="Top" Width="255" Height="32" FontFamily="Times New Roman" FontSize="20"/>
        <Button Content="Войти" HorizontalAlignment="Left" VerticalAlignment="Top" Width="255" Margin="10,227,0,0" Height="48" FontFamily="Times New Roman" FontSize="22" Click="Button_Click"/>
        <Button Content="Регистрация" HorizontalAlignment="Left" Height="34" Margin="10,303,0,0" VerticalAlignment="Top" Width="255" FontFamily="Times New Roman" FontSize="18" Click="Button_Click_1"/>

    </Grid>
</Window>