.heh {
    height: 8vh;
}

.topbk {
    position: fixed;
    top: 0;
    left: 0;
    height: 8vh;
    width: 100%;
    background-color: black;
    z-index: 1;
}


.toplogo {
    position: fixed;
    top: 0;
    left: 0;
    height: 8vh;
    background-color: black;
}

.txtw {
    color: white;
}

.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    transition: 0.5s;
    padding-top: 60px;
    text-align: center;
}

.sidenav a {
    padding: 8px 8px 8px 32px;
    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;
}

.topnav {
    position: fixed;
    top: 0;
    right: 0;
    height: 7.5vh;
    background-color: black;
}