:root{color:#1a2332;background-color:#f5f7fa}body{margin:0;display:flex;min-width:320px;min-height:100vh}#root{width:100%}a{font-weight:500;color:#1976d2;text-decoration:none}a:hover{color:#1251a3}.cell-input{width:100%;height:100%;border:none;background:transparent;text-align:center;font-size:inherit;outline:none;padding:0;color:#1a2332;cursor:text;box-sizing:border-box;border-radius:3px}.cell-input:focus{background:#1976d2;color:#fff}