body{font-family:system-ui,sans-serif}table{border-spacing:10px;border:2px solid #000;width:50%;margin:20px auto}th,td{text-align:center;border:1px solid #000;padding:12px}th{background-color:#f2f2f2}button,.button{color:#000;cursor:pointer;background:#f2f2f2;border:1px solid #000;padding:4px 16px;font-size:20px;text-decoration:none}.error{color:#c00}.container{flex-direction:column;justify-content:center;align-items:center;display:flex}