.sidenav {
    -webkit-transition: all 0.35s ease;
    -moz-transition: all 0.35s ease;
    -ms-transition: all 0.35s ease;
    -o-transition: all 0.35s ease;
    transition: all 0.35s ease;

    position: absolute;
    list-style: none;
    margin-left: 0px !important;
    overflow: scroll;
}
.sidenav.out {
    left: 100%;
}
.sidenav.in {
    left: 0px;
}