body {
  margin: 0;
  padding: 0;
  background-color: #000;
  color: #fff;
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

h1,
h2,
h3 {
  color: #fff;
}

a {
  color: #1e90ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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