body {
  background-color: #36393f;
  color: #fff;
  font-family: sans-serif;
}

header {
  background-color: #7289da;
  padding: 1rem;
}

h1 {
  margin: 0;
  font-size: 2rem;
}

main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
}

button {
  padding: 1rem 2rem;
  background-color: #43b581;
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 1.2rem;
  cursor: pointer;
}

#love-letter {
  display: none;
  padding: 2rem;
  background-color: #2f3136;
  color: #fff;
  margin-top: 2rem;
  border-radius: 5px;
  font-size: 1.2rem;
}