.vc-gitem-zone-height-mode-auto::before {
    content: "";
    display: block;
    padding-top: 66%;
}
.vc_gitem_row .vc_gitem-col {
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-size: cover;
    box-sizing: border-box;
    padding: 0px;
}