amcharts Column with gradient fills

HTML

<table data-depth="depth01">
  <tr class="nodes">
    <td>
      <div class="box"></div>
    </td>
  </tr>
  <tr class="line">
    <td></td>
  </tr>
  <tr class="lines">
    <td class="left top"></td>
    <td class="right top"></td>
  </tr>
</table>

CSS

.box {width:100px; height: 30px; background:pink;}