body[data-capture="object-lab"]{background:#111}
body[data-capture="object-lab"]>header,
body[data-capture="object-lab"]>footer,
body[data-capture="object-lab"] main>section:not(#object-lab){display:none!important}
body[data-capture="object-lab"] main{width:864px;max-width:864px;margin:0}