Вопросы по CSS

tvoi_div{
background: #f7f3f7; /* Old browsers */
background: -moz-linear-gradient(top,  #f7f3f7 0%, #f7f3f7 1%, #d6d7d6 2%, #adaaad 4%, #8cd3ff 5%, #8cd3ff 13%, #84cfff 14%, #84cfff 22%, #84cbff 24%, #84c7ff 36%, #7bc7ff 38%, #7bc3ff 40%, #7bc3ff 48%, #7bbeff 49%, #7bbeff 58%, #73baff 59%, #73baff 67%, #73b6ff 68%, #73b6ff 76%, #73b2ff 78%, #73b2ff 81%, #6bb2ff 82%, #6baeff 85%, #6baeff 93%, #6baaff 94%, #6baaff 98%, #adaaad 99%, #adaead 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f7f3f7), color-stop(1%,#f7f3f7), color-stop(2%,#d6d7d6), color-stop(4%,#adaaad), color-stop(5%,#8cd3ff), color-stop(13%,#8cd3ff), color-stop(14%,#84cfff), color-stop(22%,#84cfff), color-stop(24%,#84cbff), color-stop(36%,#84c7ff), color-stop(38%,#7bc7ff), color-stop(40%,#7bc3ff), color-stop(48%,#7bc3ff), color-stop(49%,#7bbeff), color-stop(58%,#7bbeff), color-stop(59%,#73baff), color-stop(67%,#73baff), color-stop(68%,#73b6ff), color-stop(76%,#73b6ff), color-stop(78%,#73b2ff), color-stop(81%,#73b2ff), color-stop(82%,#6bb2ff), color-stop(85%,#6baeff), color-stop(93%,#6baeff), color-stop(94%,#6baaff), color-stop(98%,#6baaff), color-stop(99%,#adaaad), color-stop(100%,#adaead)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #f7f3f7 0%,#f7f3f7 1%,#d6d7d6 2%,#adaaad 4%,#8cd3ff 5%,#8cd3ff 13%,#84cfff 14%,#84cfff 22%,#84cbff 24%,#84c7ff 36%,#7bc7ff 38%,#7bc3ff 40%,#7bc3ff 48%,#7bbeff 49%,#7bbeff 58%,#73baff 59%,#73baff 67%,#73b6ff 68%,#73b6ff 76%,#73b2ff 78%,#73b2ff 81%,#6bb2ff 82%,#6baeff 85%,#6baeff 93%,#6baaff 94%,#6baaff 98%,#adaaad 99%,#adaead 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #f7f3f7 0%,#f7f3f7 1%,#d6d7d6 2%,#adaaad 4%,#8cd3ff 5%,#8cd3ff 13%,#84cfff 14%,#84cfff 22%,#84cbff 24%,#84c7ff 36%,#7bc7ff 38%,#7bc3ff 40%,#7bc3ff 48%,#7bbeff 49%,#7bbeff 58%,#73baff 59%,#73baff 67%,#73b6ff 68%,#73b6ff 76%,#73b2ff 78%,#73b2ff 81%,#6bb2ff 82%,#6baeff 85%,#6baeff 93%,#6baaff 94%,#6baaff 98%,#adaaad 99%,#adaead 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #f7f3f7 0%,#f7f3f7 1%,#d6d7d6 2%,#adaaad 4%,#8cd3ff 5%,#8cd3ff 13%,#84cfff 14%,#84cfff 22%,#84cbff 24%,#84c7ff 36%,#7bc7ff 38%,#7bc3ff 40%,#7bc3ff 48%,#7bbeff 49%,#7bbeff 58%,#73baff 59%,#73baff 67%,#73b6ff 68%,#73b6ff 76%,#73b2ff 78%,#73b2ff 81%,#6bb2ff 82%,#6baeff 85%,#6baeff 93%,#6baaff 94%,#6baaff 98%,#adaaad 99%,#adaead 100%); /* IE10+ */
background: linear-gradient(to bottom,  #f7f3f7 0%,#f7f3f7 1%,#d6d7d6 2%,#adaaad 4%,#8cd3ff 5%,#8cd3ff 13%,#84cfff 14%,#84cfff 22%,#84cbff 24%,#84c7ff 36%,#7bc7ff 38%,#7bc3ff 40%,#7bc3ff 48%,#7bbeff 49%,#7bbeff 58%,#73baff 59%,#73baff 67%,#73b6ff 68%,#73b6ff 76%,#73b2ff 78%,#73b2ff 81%,#6bb2ff 82%,#6baeff 85%,#6baeff 93%,#6baaff 94%,#6baaff 98%,#adaaad 99%,#adaead 100%); /* W3C */
filter: progidXImageTransform.Microsoft.gradient( startColorstr='#f7f3f7', endColorstr='#adaead',GradientType=0 ); /* IE6-9 */

}