.app-form {
    width: 100%;
    height: auto;
    border: 2px solid #000;
    padding: 30px;
}
.app-form form div {
    display: flex;
    flex-direction: column;
}
.app-form form input, label, .app-form form .submit {
    padding: 10px;
    width: 100% !important;
    margin: 2px auto;
}