body {
    width: 100%;
}

.topnav {
    display: block;
    width: 20%;
    text-weight: bold;
}

#divbidon {
    top: 0;
    width: 100%;
}

#navbar {
    display: flex;
    flex-direction: row;
    width: 100%;
    padding: 0 50px 0 50px;
}

#mailform {
    margin-left: 200px;
    padding: 50px 0 50px 50px;
    border: solid 2px;
}