Ajust CCS from old site to new site

I would like to ajust CSS from old site to new one.

The code is below, theme is almost the same, but just new version. (wordpress based)

Code from CSS
/* Home */
.home .property-item .figure-block img { width: auto !important; margin: 0 auto !important; }
.home .owl-item .figure-block img { height: 258px !important; height: 100%; width: auto !important; margin: 0 auto !important; }

/* Página do imóvel */
.detail-slider .item .single-property { background-size: contain !important; }

/* .owl-loaded */
@media (max-width: 767px) {
.detail-slider-nav .owl-item .item img {
height: 60px !important;
}
.lightbox-nav-title {
white-space: nowrap;
text-overflow: ellipsis;
width: calc(100% - 100px);
margin-left: 50px;
overflow: hidden;
display: block;
}
/* Ocultar formulario de contato da galeria de imoveis */
.lightbox-right:not(.in) {
display: none;
}
}

@media (min-width: 768px) {
.detail-slider-nav .owl-item .item img {
height: 80px !important;
}
}

.owl-item .item img {
width: 100% !important;
}

.sidebar-white { position: relative; }
.sidebar-white .widget { display: none; }
.sidebar-white .widget.widget_houzez_advanced_search { display: block !important; }
.sidebar-white .form-contact-agent .widget-header { padding: 10px 0; margin-bottom: 20px; text-align: center; text-transform: uppercase; color: #fff; border-bottom: 1px solid #fff; background-color: #4db6bc}
.sidebar-white .form-contact-agent .widget-header .fa { font-size: 24px; vertical-align: middle; background-color: #4db6bc }
.sidebar-white .form-contact-agent .form-small { padding: 0 20px; background-color: #4db6bc; }
.sidebar-white .form-contact-agent .form-small .agent-media .media-left, .sidebar-white .form-contact-agent .form-small .agent-media .media-body { vertical-align: middle; }
.sidebar-white .form-contact-agent .form-small .agent-media .media-left a, .sidebar-white .form-contact-agent >>>>>