body {
  font-family: Arial, sans-serif;
  font-size: 18px;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}

div {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  background-color: white;
  border-radius: 10px;
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
    background-color: #e0e0e0;
  }

  .container {
    padding: 10px;
    border-radius: 0;
  }
}