header h1 {
  padding: 25px;
  text-align: center;
}
header nav ol {
  display: flex;
}
header nav ol li {
  width: 20%;
}
header nav ol li a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 50px;
  background-color: #afcffa;
}
header nav ol li a:hover {
  background-color: rgba(175, 207, 250, 0.7);
}
header nav ol li:nth-child(n + 2) {
  border-left: 1px solid #fff;
}