.gform_wrapper .gf-columns-wrapper.gform_fields {
    display: flex;
    flex-wrap: wrap;
}

.gf-column-half {
    width: 50%;
}

.gf-column-third {
    width: 33.33%;
}

.gf-column-quarter {
    width: 25%;
}

.gf-column-single {
    width: 100%;
}

@media only screen and (max-width: 800px) {
    .gf-column-quarter,
    .gf-column-third,
    .gf-column-half {
        width: 100%;
    }
}