body {
  text-align: center;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

nav {
  margin: 20px 0;
}

img {
  max-width: 90%;
  height: auto;
}

main {
  max-width: 800px;
  margin: 0 auto;
}

main p {
  text-align: left;
}

.email-link p {
  text-align: center;
}

footer {
  margin-top: 20px;
}