html, body, #wrapper 
{
      margin: 0;
      padding: 0;
      border: none;
      text-align: center;
      /* height: 100% */
   }
 
    #page {
      margin: 0; padding: 0;
      min-height: 100%; 
      _height: 100%; /* min-height for smart browsers
                     _height for Internet Explorer ;-)*/
    }
     
    #content {
      padding-bottom: 40px;
    }
     
    #footer {
      margin: -35px 0 0 0; 
      padding: 0 0 0 0; /* assuming footer of height 100px */
    }