#config-overlay {
    text-align: center;
  }
  
  #config-overlay h2 {
    margin: 0.5rem 0;
  }
  
  .form-control {
    margin: 0.5rem 0;
  }
  
  .form-control label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
  }
  
  .form-control input {
    font: inherit;
    border: 1px solid rgb(204, 204, 204);
    width: 15rem;
    padding: 0.35rem;
  }
  
  .error label {
    color: rgb(136, 2, 2);
  }
  
  .error input {
    border-color: rgb(136, 2, 2);
    color:rgb(136, 2, 2);
    background-color: rgb(253, 219, 219);
  }
  
  #game-configuration {
    width: 90%;
    max-width: 40rem;
    margin: 3rem auto;
    text-align: center;
  }
  
  #game-configuration ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
  }
  
  #game-configuration li {
    margin: 1rem;
    padding: 1rem;
    width: 50%;
    background-color: rgb(243, 227, 255);
    border-radius: 4px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  }
  
  #game-configuration h2 {
    font-size: 1rem;
    margin: 0.5rem 0;
  }
  
  #game-configuration h3 {
    font-size: 1.5rem;
    margin: 0.5rem 0;
    color: rgb(94, 4, 168);
  }
  
  .player-symbol {
    font-size: 2rem;
    font-weight: bold;
    color: rgb(47, 4, 82);
    margin: 0.5rem 0;
  }