.container_lightbox_iframe {
    position: relative;
    margin: 0 auto;
    top: 50%;
    transform: translate(0, -50%);
    width: 70%;
    padding-top: 39%;
}

.container_lightbox_iframe iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.pswp__top-bar,
.pswp__caption,
.pswp__caption--fake {
    opacity: 0 !important;
    display: none !important;
} 

@media (max-width: 992px) {
    .container_lightbox_iframe {
        width: 100%;
        padding-top: 56%;
    }
}