Simple Guide: Facebook video downloader, YouTube video downloader, Instagram video downloader :root --maxw:900px; --accent:#0b69ff; --muted:#555; --bg:#f9fbff; --card:#ffffff; --radius:12px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; html,bodyheight:100%;margin:0