@media screen and (max-width: 767px) {
    .drawer-open {
        overflow-y: hidden;
    }

    .drawer .navbar-toggle {
        border: none;
        float:right;
        margin: 8px 15px;
    }

    .drawer .navbar-toggle:hover, .drawer .navbar-toggle:focus {
        background-color: transparent;
    }

    .drawer .navbar-brand {
        padding-left: 10px;
    }

    .drawer + .navbar-collapse {
        box-shadow: 0 10px 10px 3px rgba(0, 0, 0, 0.2);
        right: -5px;
        min-height: 100%;
        height:100%;
        position: fixed;
        top: -5px;
        transition: 0.2s;
        overflow:scroll;
    }

    .drawer + .navbar-collapse.in {
        z-index: 1041;
    }
}