title: The text box bottom border on UWP application is not visible
body: <p>I am a creating a UWP application for the first time and I am encountering a weird problem where textbox's bottom border disappears if the textbox height is less than 32 (Default textbox size).</p>
  
  <p>I want the textbox to be of height 25 and not 32. So, what should I do to get the bottom border of the textbox to remain and the size of textbox be 25?</p>
  
  <p><img src="https://i.stack.imgur.com/TTiA1.jpg" alt="Textbox when height is 25"></p>
  
  <p><img src="https://i.stack.imgur.com/M64Z4.png" alt="Textbox when height greater/equal to than 32"></p>