.fat-nav {
    background: #6e617a;
    background: -moz-linear-gradient(top, #6e617a 0%, #57697b 100%);
    background: -webkit-linear-gradient(top, #6e617a 0%,#57697b 100%);
    background: linear-gradient(to bottom, #6e617a 0%,#57697b 100%);
    background: linear-gradient(90deg, rgba(110,97,122,.9), rgba(87,105,123,.9));
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#6e617a', endColorstr='#57697b',GradientType=0 );
}