title: How to set Bootstrap @font-family-base?
body: <p><a href="http://getbootstrap.com/css/#overview" rel="noreferrer">Bootstrap docs</a> say:</p>
  
  <blockquote>
    <p>Use the <code>@font-family-base</code>, <code>@font-size-base</code>, and <code>@line-height-base</code> attributes as our typographic base.</p>
  </blockquote>
  
  <p>Does this mean there is a CSS variable called <code>@font-family-base</code>?</p>
  
  <p>How can I set this in CSS to change the font for my whole page?</p>