site/_src/_assets/styles/bigchain/_menus.scss

.menu {
    position: relative;
    z-index: 10;

    .grid__col {
        text-align: center;

        @media ($screen-md) {
            text-align: left;

            &:last-child { text-align: right; }
        }
    }
}

.menu__link {
    @extend .small;
    display: inline-block;
    padding: $spacer;
    text-transform: uppercase;

    @media ($screen-md) {
        padding: ($spacer * 1.5) $spacer;
    }

    // link line
    &:after {
        content: "";
        height: 2px;
        width: 30px;
        background: #fff;
        display: block;
        margin: ($spacer / 3) auto 0 auto;
        // hidden by default
        transform: scale(0);
        transform-origin: center;
        transition: transform .2s ease-out;
    }

    &:hover,
    &:focus,
    &.active {
        // show link line
        &:after { transform: scale(1); }
    }
}

.menu__logo {
    display: block;
    margin-top: $spacer;

    @media ($screen-md) {
        display: inline-block;
        margin-top: 0;
    }

    svg {
        @extend .transition;
        fill: #fff;
        opacity: .8;
    }

    &:hover svg,
    &:focus svg {
        opacity: 1;
    }
}


//
// Main menu overlaying a dark background image
// in front page hero or page headers
//
.menu--main {
    .menu__logo {
        @media ($screen-md) {
            padding: ($spacer/1.2) 0 ($spacer * 1.5) 0;
        }
    }

    .menu__link {
        color: #fff;
        opacity: .8;

        &:hover,
        &:focus,
        &.active {
            opacity: 1;
        }
    }
}


//
// Footer Menu
//
.menu--footer {

    .menu__logo {
        margin-bottom: $spacer;

        @media ($screen-md) { margin-bottom: 0 }
    }

    .logo {
        fill: $gray;
        opacity: 1;
        height: 9px;
    }

    .menu__link {
        @extend .mini;
        padding: ($spacer/2);
        color: $gray;

        // link line
        &:after {
            background: $link-color;
        }

        &:first-child { padding-left: 0; }
        &:last-child { padding-right: 0; }

        &:hover,
        &:focus,
        &.active { color: $link-color; }
    }
}