body {
  font-family: sans-serif;
  text-align: center;
}

table {
  border-collapse: collapse;
  margin: auto;
}

td {
  border: 1px solid #333;
  width: 100px;
  height: 100px;
  font-size: 48px;
  cursor: pointer;
}

#current-player {
  font-weight: bold;
}

button {
  margin-top: 20px;
  padding: 10px 20px;
  font-size: 18px;
  cursor: pointer;
}