title: Random background picture CSS | RAILS
body: <pre><code>html{ 
      background: url(/assets/flower.jpg) no-repeat center center fixed; 
      -webkit-background-size: cover;   
      -moz-background-size: cover;
      -o-background-size: cover;
      background-size: cover;
  }
  </code></pre>
  
  <p>How can I make this code randomly choose from a selected number of pictures as background. I am using Rails 3, so have that in mind, if that will simplify the process of making this work.
  THANKS! :D </p>