body {
  font-family: "Noto Sans KR", sans-serif;
  flex-direction: column;
  align-items: center;
}

main {
  width: 680px;
}

header {
  display: flex;
  width: 680px;
  height: 249px;
}

header nav {
  display: flex;
  justify-content: right;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  margin: 0 10px;
  width: -webkit-fill-available;
  align-items: flex-end;
  user-select: none;
  -webkit-user-select: none;
}

div.nav-divider {
  margin: 0 5px;
}

div.nav-divider::after {
  content: "|";
}

header > nav > a:hover {
  color: #333;
}

a {
  text-decoration: none;
  color: inherit;
}

footer {
  display: flex;
  background-color: #6799ff;
  width: calc(680px - 10px);
  justify-content: right;
  user-select: none;
  -webkit-user-select: none;
  padding: 1px 5px;
}

footer > div {
  display: flex;
  align-items: center;
}

footer div > span, footer div > d {
  margin: 0 2px;
  cursor: pointer;
  font-size: 13px;
}