title: box-item with slick slides with different background colors
body: <p>how can I give to 3 slick slides from a box item <strong>different background</strong> colors to each of them?</p>
  
  <p>Now all of them have the same background color, so in <strong>css</strong> this is :</p>
  
  <pre><code>.box .box-item .box-content
  {
   background:#aeaeae
  }
  </code></pre>
  
  <p>Thank you a lot in advance!</p>