<table id="table-text" style="position : relative;z-index: 2;bottom: 0px;left: 0px;" border="1">
<tr>
  ...
</tr>
</table>
<div id="kometamix-12"></div>

#kometamix-12 {
    background-image : url("../images/kometamix_12.png");
    height : 185px;
    bottom: 0px;
    left: 0px;
    z-index: 1;
    position:relative;
    width : 267px;
  }