title: How to center text inside button?
body: <p>Hi i have one little problem with my <a href="http://touchdowner.cz/digitalni-produkty/" rel="nofollow noreferrer">site</a>. I have one button into to header, but text inside looks misaligned. How to make text to be a little UP into button? Currently is a little down. </p>
  
  <p>This is CSS class for that button:</p>
  
  <pre><code>header .popup_link {
      height: 20px;
      padding: 3px 30px !important;
  }
  </code></pre>
  
  <p>What to do to make text properly alligned inside button?</p>