:root{font-size:clamp(15px,1.4vw,18px)}body{font-size:1rem;line-height:1.6;margin:0}img,video{max-width:100%;height:auto;display:block}*{box-sizing:border-box}.responsive-video-container{display:flex;align-items:center;justify-content:center;width:100%;height:100%;overflow:hidden}.responsive-video{display:block;width:100%;height:100%;object-fit:cover;object-position:center center}