body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #333;
}
header {
  background-color: #b2dfdb;
  color: #ff6f61;
  text-align: center;
  padding: 1em;
}
nav a {
  margin: 0 10px;
  color: #ff6f61;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
main {
  padding: 2em;
  text-align: center;
}
footer {
  background-color: #b2dfdb;
  color: #333;
  text-align: center;
  padding: 1em;
  font-size: 0.9em;
}