* {
    margin: 0;
    padding: 0;
  }
  body {
    display: grid;
    place-items: center;
  }
  
  h1 {
    text-align: center;
    margin: 20px 0 20px 0;
  }
  h2 {
    text-align: center;
    margin-bottom: 20px;
  }
  
  .board {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    border: 2px solid black;
    width: 630px;
    background-color: rgb(74, 74, 198);
  }
  
  ul {
    display: grid;
    place-items: center;
  }
  
  ul p {
    margin: 5px;
    width: 75px;
    height: 75px;
    border: 2px solid black;
    border-radius: 100px;
    background-color: white;
  }
  
  ul:hover {
    cursor: pointer;
    background-color: rgb(98, 136, 238);
  }
  
  @media (max-width: 700px) {
    .board {
      width: 500px;
    }
    ul p {
      width: 55px;
      height: 55px;
    }
  }
  @media (max-width: 520px) {
    .board {
      width: 400px;
    }
    ul p {
      width: 40px;
      height: 40px;
    }
  }
  @media (max-width: 420px) {
    .board {
      width: 320px;
    }
    ul p {
      width: 30px;
      height: 30px;
    }
  }