.box_gradient {
  background-color: #444444;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#444444), to(#999999)); /* Saf4+, Chrome */
  background-image: -webkit-linear-gradient(top, #444444, #999999); /* Chrome 10+, Saf5.1+ */
  background-image:    -moz-linear-gradient(top, #444444, #999999); /* FF3.6 */
  background-image:     -ms-linear-gradient(top, #444444, #999999); /* IE10 */
  background-image:      -o-linear-gradient(top, #444444, #999999); /* Opera 11.10+ */
  background-image:         linear-gradient(top, #444444, #999999);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#444444', EndColorStr='#999999'); /* IE6–IE9 */
}