.listing-results__item {
    width: -webkit-calc(100% - 20px);
    width: -moz-calc(100% - 20px);
    width: calc(100% - 20px);
    box-sizing: border-box;
}


@media only screen and (min-width: 1024px) {
    .listing-results__item {
        width: -webkit-calc(100% - 30px);
        width: -moz-calc(100% - 30px);
        width: calc(100% - 30px);
        box-sizing: border-box;
    }
}

.hb-home-designs-app .listing-results .column:last-child .listing-results__item,
.hb-home-designs-app .listing-results .columns:last-child .listing-results__item {
    margin-bottom: 3em;
}