.pax-form-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: column;
    max-width: 768px;
    margin: 0 auto;
}
.pax-form-grid > * {
    padding: 10px;
    width: 100%;
}
@media only screen and (max-width: 768px) {
    .pax-form-grid > * {
        width: 100%;
    }
}