IE background fixed resize to cover browser window

[fairladyZ]

code below works in firefox, chrome, etc., but not in Internet Explorer. How to make background to cover browser window, even if there is not much text.\[code\]body {background: -ms-linear-gradient(top, #e5e5e5 0%, #c0bfbf 100%) center center fixed; /* IE10 Consumer Preview */background: -moz-linear-gradient(top, #e5e5e5 0%, #c0bfbf 100%) center center fixed; /* Mozilla Firefox */background: -o-linear-gradient(top, #e5e5e5 0%, #c0bfbf 100%) center center fixed; /* Opera */background: -webkit-gradient(linear, left top, left bottom, color-stop(0, #e5e5e5), color-stop(1, #c0bfbf)) center center fixed; /* Webkit (Safari/Chrome 10) */background: -webkit-linear-gradient(top, #e5e5e5 0%, #c0bfbf 100%) center center fixed; /* Webkit (Chrome 11+) */background: linear-gradient(to bottom, #e5e5e5 0%, #c0bfbf 100%) center center fixed; /* W3C Markup, IE10 Release Preview */filter: progidXImageTransform.Microsoft.gradient(startColorstr='#e5e5e5', endColorstr='#c0bfbf',GradientType=0, sizingMethod='scale'); /* IE6-8 */-ms-filter: "progidXImageTransform.Microsoft.gradient(startColorstr='#e5e5e5', endColorstr='#c0bfbf',GradientType=0, sizingMethod='scale')"; /* IE6-8 */color:#393939;font:12px/18px Arial,sans-serif;margin:0;padding:0px;}\[/code\]