.portal .header .nav > ul > li.hover > ul {
    top: 120px !important;
}

.portal #header-mini .nav > ul > li.hover > ul {
    top: 60px !important;
}

.ms-signInLink {
    display: none !important;
}

.portal .header .top-container {
    position: fixed;
    z-index: 999;
}

.portal .header .container {
    position: relative;
    top: 40px;
}