1.
2.
1. so sollte es aussehen
2. so sieht es aus bei Chrome und FF
body {
background: url(../img/pattern.jpg) repeat fixed;
background: -moz-linear-gradient(top, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 50%, rgba(0,0,0,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,1)), color-stop(50%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(0,0,0,1) 0%,rgba(0,0,0,0) 50%,rgba(0,0,0,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(0,0,0,1) 0%,rgba(0,0,0,0) 50%,rgba(0,0,0,1) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(0,0,0,1) 0%,rgba(0,0,0,0) 50%,rgba(0,0,0,1) 100%); /* IE10+ */
background: linear-gradient(top, rgba(0,0,0,1) 0%,rgba(0,0,0,0) 50%,rgba(0,0,0,1) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#000000',GradientType=0 ); /* IE6-9 */
}