Lab16/WpfApp1/Page2.xaml

<Page x:Class="WpfApp1.Page2"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:WpfApp1"
      mc:Ignorable="d" 
      d:DesignHeight="500" d:DesignWidth="800"
      Title="Page2"
      Background="Transparent">

    <Border  Background="AntiqueWhite" HorizontalAlignment="Center" >
        <Grid Background="Transparent"  Margin="5,5,5,5">
            <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
                <StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
                    <Border CornerRadius="10" Background="White" Margin="10 50 10 0">
                        <StackPanel>
                            <StackPanel Orientation="Horizontal" VerticalAlignment="Top" HorizontalAlignment="Center" Margin="5 5 5 5">
                                <TextBlock   Text="Высота:" Width="130"  VerticalAlignment="Center" FontSize="14"/>
                                <TextBox x:Name="HeightTextBox" Width="330" Height="40" FontSize="22" />
                            </StackPanel>

                            <StackPanel Orientation="Horizontal" VerticalAlignment="Top" HorizontalAlignment="Center" Margin="5 5 5 5">
                                <TextBlock  Text="Время падения:"  Width="130"  VerticalAlignment="Center" FontSize="14"/>
                                <TextBox x:Name="TimeTextBox" Width="330" Height="40" FontSize="22"/>
                            </StackPanel>
                        </StackPanel>
                    </Border>
                    
                    <Border CornerRadius="10" Background="White" Margin="10 20 10 0">
                        <StackPanel Orientation="Horizontal" VerticalAlignment="Top" HorizontalAlignment="Center">
                            <Button Grid.Row="2" Margin="10" Content="Рассчитать" Click="CalculateButton_Click" Width="330" Background="#32373d" BorderBrush="#32373d"/>
                            <Button Grid.Row="2" Margin="10" Content="Стереть" Width="100" Click="Button_Click_1" Style="{StaticResource MaterialDesignFlatButton}" Foreground="Black" BorderBrush="Black"/>
                        </StackPanel>
                    </Border>

                    <Border CornerRadius="10" Background="White" Margin="10 20 10 0">
                        <StackPanel HorizontalAlignment="Center" >
                            <Label x:Name="ResultLabel" Grid.Row="3" Margin="10" FontSize="25" Height="170" Width="504" HorizontalAlignment="Stretch" Background="Transparent"/>
                        </StackPanel>
                    </Border>
                </StackPanel>
            </StackPanel>
        </Grid>
    </Border>
</Page>