* {
  margin: 0;
  padding: 0;
}
body {
  background: whitesmoke;
}

.title {
  position: fixed;
  top: 50px;
  left: 0;
  right: 0;
  margin: 0 auto;
  text-align: center;
  font-size: 30px;
  font-family: 'Roboto', sans-serif;
}

.mantenimiento {
  height: 579px;
  width: 1000px;
  margin: 100px auto 0 auto;
}

.message {
  position: fixed;
  bottom: 50px;
  left: 0;
  right: 0;
  margin: 0 auto;
  text-align: center;
  font-size: 1rem;
  font-family: 'Roboto', sans-serif;
}