#header {
/*      background: #0f0;*/
      position: absolute;
      top: 0px;
      left: 0px;
      width: 800px;
      height: 100px;
      text-align: center;
    }
    #leftcol {
      /*background: #f00;*/
      position: absolute;
    top: 100px;
      left: 10px;
      width: 280px;
    /*  height: 500px;*/
      text-align: center;
    }
    #content {
      /*background: #fff;*/
      position: absolute;
      top: 100px;
    left: 300px;
      width: 700px;
      height: 500px;
    }
    #footer {
      /*background: #0f0;*/
      position: absolute;
      top: 500px;
      left: 0px;
      width: 800px;
      height: 100px;
    }