terrafarm/gatsby-casper-demo

.menu-button {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    float: right;
    height: 38px;
    padding: 0 15px;
    border-style: solid;
    border-width: 1px;
    opacity: 1;
    text-align: center;
    font-size: 12px;
    text-transform: uppercase;
    line-height: 35px;
    white-space: nowrap;
    border-radius: 3px;
    transition: all 0.5s ease;
}

.menu-button::before {
    font-size: 12px;
    font-weight: bold;
    margin-right: 6px;
    position: relative;
    top: 1px;
}

.menu-button:hover {
    background: #fff;
}

.menu-button:focus {
    outline: 0;
}

/* When the navigation is closed */
.nav-closed .menu-button {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
}

.nav-closed .menu-button:hover {
    color: #222;
}

/* When the navigation is closed and there is no cover image */
.nav-closed .no-cover .menu-button {
    border-color: #bfc8cd;
    color: #9eabb3;
}

.nav-closed .no-cover .menu-button:hover {
    border-color: #555;
    color: #555;
}

/* When the navigation is opened */
.nav-opened .menu-button {
    padding: 0 12px;
    background: #111;
    border-color: #111;
    color: #fff;
    -webkit-transform: translate3d(94px, 0, 0);
    -ms-transform: translate3d(94px, 0, 0);
    transform: translate3d(94px, 0, 0);
    transition: all 0.3s ease;
}

.nav-opened .menu-button .word {
    opacity: 0;
    transition: all 0.3s ease;
}

.icon-menu::before {
    content: "\f609";
}

/* ==========================================================================
      Media Queries - Smaller than 500px
   ========================================================================== */

@media only screen and (max-width: 500px) {
    .menu-button {
        padding: 0 5px;
        border-radius: 0;
        border-width: 0;
        color: #2e2e2e;
        background: transparent;
    }

    .menu-button:hover {
        color: #2e2e2e;
        border-color: transparent;
        background: none;
    }

    .nav-opened .menu-button {
        background: none;
        border: transparent;
    }

    .no-cover .main-nav.overlay .menu-button {
        border: none;
    }

    .main-nav.overlay .menu-button {
        border-color: transparent;
    }
}