background: #636363; /* Old browsers */
background: -moz-linear-gradient(left, #636363 20%, #7f7f7f 36%, #ffffff 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(20%,#636363), color-stop(36%,#7f7f7f), color-stop(100%,#ffffff)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, #636363 20%,#7f7f7f 36%,#ffffff 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #636363 20%,#7f7f7f 36%,#ffffff 100%); /* Opera11.10+ */
background: -ms-linear-gradient(left, #636363 20%,#7f7f7f 36%,#ffffff 100%); /* IE10+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#636363', endColorstr='#ffffff',GradientType=1 ); /* IE6-9 */
background: linear-gradient(left, #636363 20%,#7f7f7f 36%,#ffffff 100%); /* W3C */