Laba2.05.04/AuthPage.xaml

<Page x:Class="WpfApp1.AuthPage"
      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="450" d:DesignWidth="800"
      Title="HotelsPage">

    <Grid>
        <Button Content="Войти" Background="#D61972" Click="Button_Click"></Button>
    </Grid>
</Page>