Fixed

body {
    background: rgb(178,225,255); /* Old browsers */
    background-repeat:no-repeat;
    background-attachment:fixed;
    background: -moz-linear-gradient(top, rgba(178,225,255,1) 0%, rgba(0,133,249,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(178,225,255,1)), color-stop(100%,rgba(0,133,249,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, rgba(178,225,255,1) 0%,rgba(0,133,249,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, rgba(178,225,255,1) 0%,rgba(0,133,249,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, rgba(178,225,255,1) 0%,rgba(0,133,249,1) 100%); /* IE10+ */
    background: linear-gradient(to bottom, rgba(178,225,255,1) 0%,rgba(0,133,249,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b2e1ff', endColorstr='#0085f9',GradientType=0 ); /* IE6-9 */
}