title: How to pick random content from an array
body: <p>I'm trying to serve a random image picked from an array in Less.</p>
  <p>Here's what I have so far:</p>
  <pre><code>@images = ['ancora.svg', 'timone.svg', 'corda.svg', 'bussola.svg'];
  @randomimage: `images[Math.floor(Math.random() * images.length)]`;
   
  #footer-widgets .container .row {
      background: url(&quot;//website.com/path/@{randomimage}&quot;) no-repeat scroll right 60px bottom 40px rgba(0,0,0,0);
  }
  </code></pre>
  <p>I think I'm doing some syntax error though. Is that the way to call a variable inside a URL (<code>path/@{randomimage}</code>)?</p>