body {
  transition: background-color 1s;
  background-color: #4107b8;
  color: #eee;
}
section {
  display: flex;
  width: 90vw;
  margin: 0 auto;
  height: 80vh;
  align-items: center;
  justify-content: center;
}
h1 {
  font-family: serif;
  font-weight: normal;
  font-size: 3rem;
  letter-spacing: 1rem;
  border-bottom: 1px dashed #eee;
}