title: The property 'Content' is set more than once,how to set textboxes in xaml
body: <p>I am getting the following error with my code shown below:</p>
  
  <pre><code>&lt;StackPanel Orientation="Horizontal" VerticalAlignment="Top"&gt;
          &lt;Button Background="Orange" FontStyle="Italic" Padding="8,4" Margin="4"&gt;Styles&lt;/Button&gt;
          &lt;Button Background="Orange" FontStyle="Italic" Padding="8,4" Margin="4"&gt;are&lt;/Button&gt;
          &lt;Button Background="Orange" FontStyle="Italic" Padding="8,4" Margin="4"&gt;cool&lt;/Button&gt;
      &lt;/StackPanel&gt;
  </code></pre>
  
  <p>Error:</p>
  
  <blockquote>
    <p>The property 'Content' is set more than once</p>
  </blockquote>