.fat-nav {
    background: #4fb587;
    background: -moz-linear-gradient(top, #4fb587 0%, #006c7c 100%);
    background: -webkit-linear-gradient(top, #4fb587 0%,#006c7c 100%);
    background: linear-gradient(to bottom, #4fb587 0%,#006c7c 100%);
    background: linear-gradient(90deg, rgba(79,181,135,.9), rgba(0,108,124,.9));
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4fb587', endColorstr='#006c7c',GradientType=0 );
}