background: -moz-linear-gradient(left,  rgba(0,0,0,0.25) 0%, rgba(255,255,255,0) 50%, rgba(0,0,0,0.25) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(0,0,0,0.25)), color-stop(50%,rgba(255,255,255,0)), color-stop(100%,rgba(0,0,0,0.25))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left,  rgba(0,0,0,0.25) 0%,rgba(255,255,255,0) 50%,rgba(0,0,0,0.25) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left,  rgba(0,0,0,0.25) 0%,rgba(255,255,255,0) 50%,rgba(0,0,0,0.25) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left,  rgba(0,0,0,0.25) 0%,rgba(255,255,255,0) 50%,rgba(0,0,0,0.25) 100%); /* IE10+ */
background: linear-gradient(left,  rgba(0,0,0,0.25) 0%,rgba(255,255,255,0) 50%,rgba(0,0,0,0.25) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#40000000', endColorstr='#40000000',GradientType=1 ); /* IE6-9 */