#overlay-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.6;
    filter: alpha(opacity=60);
    z-index: 50;
    display: none;
}

#overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: none;
}




.openmenu {
    position: fixed;
    z-index: 10;
    width: 160px;
    top: 0;
    right: 0;
    border: solid 2px #36dfee;
    padding: 10px;
    background-color: #e5e5e5;
    border-radius: 8px;
}

    .openmenu:hover {
        border: solid 2px #4a809b;
        background-color: #f6f7db;
    }

.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 900;
    top: 0;
    right: 0;
    background-color: #1a1a1a;
    overflow-x: hidden;
    transition: 0.5s;
    padding-top: 60px;
}

    .sidenav a {
        padding: 8px 8px 8px 32px;
        text-decoration: none;
        font-size: 15px;
        color: #818181;
        display: block;
        transition: 0.3s;
    }

        .sidenav a:hover {
            color: #f1f1f1;
        }

    .sidenav .closebtn {
        position: absolute;
        top: 0;
        right: 25px;
        font-size: 36px;
        margin-left: 50px;
    }

@media screen and (max-height: 450px) {
    .sidenav {
        padding-top: 15px;
    }

        .sidenav a {
            font-size: 15px;
        }