body{margin:0}*{box-sizing:border-box}main,nav{max-width:960px;margin:0 auto;padding:24px}nav ul{gap:16px;padding:0;list-style:none;display:flex}section{margin:32px 0}article{border:1px solid #ccc;margin:16px 0;padding:16px}[aria-label*=Placeholder]{border:1px dashed #999;min-height:80px;padding:24px}[aria-label*=Placeholder] span{margin-right:16px;display:inline-block}