*{box-sizing:border-box}body{margin:0}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:#f5f5f5}::-webkit-scrollbar-thumb{background:#d4d4d4;border-radius:3px}input::placeholder,textarea::placeholder{color:#000;opacity:1}