body {
    margin: 0;
    font-family: Arial, sans-serif;
  }

  .container {
    display: flex;
  }

  .left-column {
    width: 50%;
    /*background-color: #f2f2f2;*/
    padding: 20px;
  }

  .right-column {
    width: 50%;
    padding: 20px;
  }

  header, footer {
    background-color: #333;
    color: white;
    padding: 15px;
    text-align: center;

}