body {
  background-color: #161f20;
  color: #ebe8cf;
  max-width: 50%;
  font-size: 18px;
  margin: 0 auto;
  padding: 20px;
}

@media (max-width: 768px) {
  body {
    max-width: 100%;
    font-size: 16px;
  }
}