.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 6;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    padding-top: 60px;
    transition: 0.5s;
}

.sidenav .menuItems {
    margin-top: 50px;
}

#sideNavCover {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 5;
    top: 0;
    left: 0;
    background-color: #111;
    opacity: 0.8;
    overflow-x: hidden;
    transition: 0.2s;
}

.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
    transition: 0.3s;
}

.sidenav a.subGroup {
    padding: 8px 8px 8px 64px;
    text-decoration: none;
    font-size: 25px;
    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;
}

#main {
    transition: margin-left .5s;
    padding: 20px;
}

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

    .sidenav a.menuGroup {
        font-size: 18px !important;
    }

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

    header.mobile {
        display: flex !important;
        justify-content: space-between;
        margin: 5% 5%;
    }

    header.mobile img.logo {
        width: 80%;
    }

    header.mobile img.menu {
        width: 15%;
    }
}