* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0px;
    font-family: 'segoe ui';
  }

  .center > details > summary {
    font-size: 16px;
    font-weight: bold;
    color: rgb(48, 48, 48);
    font-family: Arial, Helvetica, sans-serif;
  }