Ghost/ghost/admin/assets/sass/components/navigation.scss

//
// Global Navigation
// --------------------------------------------------

// The main wrapper, sets position and bg colour.
.global-nav {
    height: 60px;
    position: fixed;
    top: 0;
    right: 0;
    bottom: auto;
    left: 0;
    z-index: 800;
    background: $darkgrey;
    transition: transform $settings-menu-transition cubic-bezier($settings-menu-bezier);

    i:before {
        display: inline-block;
        width: 16px;
    }

    // This selector ends up being `body.settings-menu-expanded .global-nav`
    body.settings-menu-expanded & {
        transform: translate3d(-350px, 0px, 0px);
    }

    .thing,
    .thing2 {
        display: none; // hide until mobile
    }
}

// Wrapper for each item
.nav-item {
    position: relative;
    display: block;
    float: left;
    height: 60px;
    padding-right: 10px;
    font-size: 1.1rem;
    letter-spacing: 1px;
    font-weight: 200;
    line-height: 1.1em;
}

// Pill shaped background
.nav-label {
    height: 33px;
    margin-top: 14px;
    padding: 10px 12px;
    color: rgba(255,255,255,0.7);
    text-transform: uppercase;
    border-radius: 4px;
    white-space: nowrap;
    transition: color 0.5s, background 0.5s;
}
.nav-item.active .nav-label,
.nav-item:focus .nav-label,
.nav-item:hover .nav-label,
.nav-item:active .nav-label {
    color: #fff;
    background: darken($darkgrey, 9%);
    transition: color 0.1s, background 0.1s;
}

// Ghost branding
.ghost-logo {
    width: 60px;
    padding-right: 0;
    text-align: center;
    color: lighten($grey, 20%);
    font-size: 1.2rem;
    line-height: 1em;
    transition: color 0.5s;

    span {
        display: none;
    }
}
.ghost-logo:hover,
.ghost-logo:focus {
    color: $lightgrey;
    transition: color 0.1s;

    .nav-label {
        background: transparent;
    }
}

// Right hand dropdown
.user-menu {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;

    .nav-label {
        margin: 0;
        padding: 0 12px;
        background: none !important;
        height: 60px;
    }

    // Profile picture
    .image {
        float: left;
        margin: 15px 8px 0 0;

        img {
            display: block;
            width: 30px;
            height: 30px;
            border-radius: 100%;
        }
    }

    // Descriptive label for mobile menu
    .name {
        float: right;
        height: 33px;
        margin-top: 14px;
        padding: 10px 12px;
        border-radius: 4px;
        max-width: 300px;
        text-overflow: ellipsis;
        white-space: nowrap;
        overflow: hidden;
        transition: background 0.5s;

        small {
            display: none; // hide until mobile
            font-size: 11px;
            text-transform: none;
            letter-spacing: 0;
            color: rgba(255,255,255,0.4);
            margin-top: 0;
            line-height: 11px;
        }
    }

    &:hover .name {
        color: rgba(255,255,255,0.9);
        background: darken($darkgrey, 7%);
        transition: background 0.1s;
    }

    .dropdown {
        position: fixed;
        top: 50px;
        right: 15px;
        left: auto;

        &.fade-in-scale {
            animation-duration: 0.1s;
        }

        &.fade-out {
            animation-duration: 0;
        }

        .dropdown-menu {
            position: absolute;
            top: 0;
            right: 0;
            left: auto;
        }
    }

}//.user-menu


//
// Mobile
// --------------------------------------------------

@media (max-width: 900px) {

    // Fixed width, position left
    .global-nav {
        z-index: 20; // below the .viewport when collapsed
        width: 260px;
        height: auto;
        top: 0;
        bottom: 0;
        left: 0;
        background: darken($darkgrey, 7%);
        overflow: auto;
        -webkit-overflow-scrolling: touch;

        transform: translate3d(-60px, 0px, 0px); // Not off the screen, to give a parallax effect
        transition: transform $settings-menu-transition cubic-bezier($settings-menu-bezier);

        .thing, .thing2 {
            display: block;
        }

        body.global-nav-expanded & {
            transform: translate3d(0, 0px, 0px);
        }
    }

    .nav-item {
        position: relative;
        float: none;
        height: auto;
        margin: 0;
        padding: 0;
        border-bottom: $darkgrey 1px solid;
    }

    // Convert to full-width mobile-friendly
    .nav-label {
        display: block;
        height: 44px;
        line-height: 44px;
        margin: 0;
        padding: 0 15px;
        border-radius: 0;
    }
    .nav-item.active .nav-label {
        color: #fff !important;
        background: darken($darkgrey, 4%);

        i { color: #fff; }
    }
    .nav-item:hover .nav-label {
        color: rgba(255,255,255,0.9);
        background: $darkgrey;
    }

    .ghost-logo {
        display: block;
        width: 100%;
        font-size: 1.1rem;
        line-height: 44px;
        text-align: left;

        span { display: inline; }
    }

    // Drop it to the bottom of the menu
    .user-menu {
        position: absolute;
        top: auto;
        right: 0;
        bottom: 0;
        left: 0;
        height: auto;
        padding: 0;
        border-bottom: none;
        border-top: $darkgrey 1px solid;
        transition: color 0.5s, background 0.5s;

        .nav-label {
            padding: 15px;
            height: auto;
        }

        .image {
            margin: 2px 10px 0 0;
        }

        .name {
            float: left;
            margin: 0;
            max-width: 300px;
            padding: 0 0 5px 0;
            text-overflow: ellipsis;
            white-space: nowrap;
            line-height: 19px;
            overflow: hidden;

            small {
                display: block;
            }
        }

        i {
            display: none;
        }

        &:hover {
            color: rgba(255,255,255,0.9);
            background: $darkgrey;
            transition: color 0.1s, background 0.1s;

            .name {
                background: transparent;
                transition: none;
            }
        }

        .dropdown {
            position: absolute;
            top: 100%;
            right: 100%;

            .dropdown-menu {
                top: auto;
                right: auto;
                bottom: calc(100% + 80px);
                left: 10px;
            }
        }


    }//.user-menu

    body.global-nav-expanded & {

        .nav-cover {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            z-index: 600;
            transition: transform $settings-menu-transition cubic-bezier($settings-menu-bezier);
            transform: translate3d(260px, 0px, 0px); // Not off the screen, to give a parallax effect
        }//.nav-cover
    }//body.global-nav-expanded

}