title: Transparent button with border
body: <p>Im trying to get this effect with buttons that make them transparent, but still have a border. When i make transparent images they make the button bigger for some reason. Here are some examples of the effect.</p>
  
  <p><img src="https://i.stack.imgur.com/toCyc.jpg" alt="In this image the buttons on the navigation bar are semi-transparent to the background of the navigation bar."></p>
  
  <p><img src="https://i.stack.imgur.com/lDbLV.jpg" alt="On the left side the &quot;Action Composer&quot; button is transparent, but still has a border."></p>
  
  <p>In the first image the buttons on the navigation bar are semi-transparent to the background of the navigation bar.</p>
  
  <p>In the second image on the left side the "Action Composer" button is transparent, but still has a border.</p>