#theContainer {
    position: relative;
    left: 50%;
    margin-left: -175px;
    margin-top: 50px;
    width: 350px;
    border-radius: 3px;
    box-shadow: 0 0 39px rgb(0 0 0 / 0.15);
    overflow: hidden;
}

#topmenu {
    position: initial;
    left: initial;
    top: initial;
}

.container {
    margin: 0;
}

    .container > div {
        margin: 0 4.5em 0 4.75em;
    }

#submit {
    margin-top: 18px;
    margin-bottom: 18px;
}