body {
  margin: 0;
  font-family: Myriad, Helvetica, Arial, "Meiryo", "メイリオ", sans-serif;
}

.container {
  display: grid;
  grid-template-rows: repeat(auto-fill, 1fr);
  height: 100vh;
  padding: 0 1rem;
}

.container > div {
  width: 100%;
}

.title-container {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

.message-container {
  font-size: 2rem;
  text-align: center;
}

.title {
  max-width: 640px;
  min-width: 300px;
  width: 100%;
}

footer {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  text-align: center;
}