bal CSS for the page and tiles -->
  <link rel="stylesheet" href="../css/main.css">

  <!-- Specific CSS for the example -->
  <style>
    /**
     * Grid items
     */
    #tiles li {
      -webkit-transition: all 0.3s ease-out;
         -moz-transition: all 0.3s ease-out;
           -o-transition: all 0.3s ease-out;
              transition: all 0.3s ease-out;
    }

    /**
     * Sort buttons
     */
    #sortbys {
      list-style-type: none;
      text-align: center;
      margin: 0 5% 0 5%;
    }

  