body {
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.5;
    font-size: 18px;
    padding: 0 10px;
    margin: 50px auto;
    max-width: 650px;
}

.dev-banner {
  background-color: #fff3cd;
  border: 1px solid #ffeeba;
  padding: 10px;
  margin-bottom: 20px;
  font-weight: bold;
}

a {
  color: #2c3e50;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

main {
  opacity: 0;
  animation: fadeIn 2.5s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  body {
    margin: 28px auto;
    font-size: 16px;
  }
  h1 {
    font-size: 28px;
  } 
}