body {
    font-family: sans-serif;
    text-align: center;
    padding: 20px;
    background-color: #111;
    color: white;
  }
  
  #grid {
    display: grid;
    grid-template-columns: repeat(16, 50px);
    margin-top: 20px;
    margin-left: 325px;
  }
  
  #grid div {
    width: 100%;
    padding-bottom: 100%;
  }