#iphone18-presentation{display:block;position:relative;width:100%;max-width:none;height:clamp(200px,27vw,360px);max-height:360px;margin:0;padding:0;overflow:hidden;background:#000;border:0;border-radius:0;box-sizing:border-box}
#iphone18-presentation video{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;background:#000}
#iphone18-presentation [hidden]{display:none!important}
@media(max-width:760px){#iphone18-presentation{height:clamp(120px,30vw,180px);max-height:180px}}