.lightbox_bg{position:fixed;width:100%;height:100%;background:grey;z-index:1;opacity:.7}.img_lightbox{width:400px;height:auto;position:absolute;margin:0 auto;left:0;right:0;top:50%;transform:translateY(-50%);-ms-transform:translateY(-50%);-webkit-transform:translateY(-50%);z-index:100}.toolbarLB{text-align:right;padding:3px}.lightbox .iframeContainer{vertical-align:middle;background:#ccc;padding:2px}.lightbox.closed{display:none}@media (max-width:991px){.img_lightbox{width:200px}}