body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
}
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
header {
  background: #003366;
  color: #fff;
  padding: 40px 0;
  text-align: center;
}
.about, .services, .contact {
  background: #fff;
  margin: 20px 0;
  padding: 20px;
  border-radius: 8px;
}
footer {
  text-align: center;
  background: #003366;
  color: #fff;
  padding: 10px 0;
}
ul {
  list-style: none;
  padding: 0;
}
ul li::before {
  content: "✓ ";
  color: green;
}