.menuButton {
    position: fixed;
    background-color: black;
    width: 50px;
    height: 50px;
    color: white;
    font-family: sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    display: none;
}

#mtop {
    display: none;
}

@media screen and (max-width: 500px) {



.menuButton {
    display: block;
    position: fixed;
}

.navbar {
    display: flex;
    flex-direction: column;
    display: none;
}

#top {
    height: 300;
    width: 90%;
}

#mtop {
    display: none;
}

}

.hidden {
    display: none;
}