body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
  color: #333;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px;
  text-align: center;
}

#header {
  position: absolute;
  top: 0;
  left: 0;
  padding: 10px;
}

h1, h2, h3 {
  font-weight: bold;
  color: #333;
}

h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

h2 {
  font-size: 28px;
  margin-bottom: 15px;
}

h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

p {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 20px;
}

a {
  color: #00b0ff;
  text-decoration: none;
}

a:hover {
  color: #333;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px;
  text-align: center;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #00b0ff;
  color: #fff;
  border-radius: 5px;
  text-decoration: none;
  margin-top: 20px;
}

.btn:hover {
  background-color: #333;
  color: #fff;
}