title: Can someone explain Xamarin padding order?
body: <p>I've looked through the Xamarin help pages, and might have missed something. As I cannot seem to find any explanation of what the padding numbers are. Here for example:</p>
  
  <pre><code>&lt;StackLayout Padding="20,0,0,0"&gt;
  &lt;StackLayout Padding="20,10,0,0"&gt;
  &lt;StackLayout Padding="20,0"&gt;
  </code></pre>
  
  <p>What is the 1st, 2nd, 3rd and 4th and what happens when I just specify two padding numbers?</p>