.propExpander.expanded + .params ul {
    position: relative;
    overflow-y: auto;
    max-height: 500px;
    overflow-x: hidden;
}

@media all and (min-width: 992px) {

    #catalogSection .sectionItems .item .itemContainer .sectionList .section {
        margin-bottom: 12px;
        width: 33.333333%;
        float: left;
    }

}