* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  font-weight: bold;
  text-align: center;
  color: black;
  background-color: black;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

p{
    color: red;
}

.container {
  background-color: antiquewhite;
  padding: 50px;
  border-radius: 20px;
  width: 90%;
  max-width: 600px;
}

#TicTacToeForm {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

#TicTacToeForm input,
#TicTacToeForm select {
  border-radius: 10px;
  padding: 10px;
  margin-top: 20px;
  width: 100%;
  max-width: 400px;
  font-size: large;
}

#TicTacToeForm span {
  margin-top: 5px;
  color: red;
  display: none;
}

#TicTacToeForm input::placeholder {
  color: black;
  font-size: large;
}

#TicTacToeForm button {
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
  background: white;
  height: 3rem;
  width: 50%;
  max-width: 200px;
  font-size: large;
  margin-top: 30px;
}

@media (hover: hover) {
  #TicTacToeForm button:hover {
    color: white;
    background: black;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 30px 20px;
  }

  #TicTacToeForm input,
  #TicTacToeForm select {
    width: 100%;
    font-size: medium;
  }

  #TicTacToeForm button {
    width: 100%;
    font-size: medium;
  }
}