.greyBox {
  background-color: #e4e4e4; 
}

.greyBox thead .corner, .greyBox tfoot .corner {
  height: 20px;
  width: 10px; 
  background-color: white;
  background-position: bottom;
  background-repeat: no-repeat;
}

.greyBox thead .left {
  background-image: url("/netinsurance01/images/T_clt.gif");
}

.greyBox thead .right {
  background-image: url("/netinsurance01/images/T_crt.gif");
}

.greyBox tfoot .left {
  background-image: url("/netinsurance01/images/T_clb.gif");
}

.greyBox tfoot .right {
  background-image: url("/netinsurance01/images/T_crb.gif");
}