body {
  margin: 0;
  font-family: "Times New Roman", serif;
  background: #fff;
  color: #000;
  line-height: 1.6;
}

header {
  background: #333;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
}

nav li {
  margin: 0;
}

nav a {
  display: block;
  padding: 12px 18px;
  color: #fff;
  text-decoration: none;
}

nav a:hover {
  background: #555;
}

.container {
  max-width: 800px;
  margin: 20px auto;
  padding: 10px 15px;
}

h1, h2 {
  font-size: 22px;
  margin-bottom: 10px;
  border-bottom: 1px solid #000;
  padding-bottom: 5px;
}

footer {
  text-align: center;
  font-size: 14px;
  padding: 12px;
  margin-top: 30px;
  background: #333;
  color: #fff;
}

footer a {
  position: fixed;
  bottom: 20px;
  left: 20px;
  margin: 5px;
  font-size: 26px;
  color: #fff;
  background: #333;
  padding: 12px;
  border-radius: 50%;
}