table {
    border-collapse: collapse;
    width: 100%;
  }
  
  th,td {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
  }
  
  th {
    background-color: #f2f2f2;
  }
  
  .heading {
    text-align: center;
    font-size: 20px;
    margin-top: 20px;
    margin-bottom: 20px;
  }
  
  body {
    font-family: Arial, sans-serif;
    align-items: center;
    display: flex;
    flex-direction: column;
  }