body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
  }
  
  .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
  }
  
  .specimen {
    margin-bottom: 10px;
    text-align: center;
  }
  
  .specimen-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 5px;
  }
  
  .barcode {
    display: flex;
    justify-content: center;
    margin: 10px;
  }
  
  .barcode img {
    height: 20px;
  }
  
  .gender-dob {
    font-size: 12px;
  }
  
  .label {
    margin-top: 20px;
    font-size: 12px;
  }