title: Change top position based on width%
body: <p>I am trying to change my navigation bar's position from the top of the screen based on the screen width. I tried in CSS: <code>top: 10%</code>, but this is based on the height of the screen not the width. </p>
  
  <p>Is there a way to get <code>top: .1 * width</code>?</p>