.page {
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen,
    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
}

.main-navigation {
  background-color: #eee;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-navigation__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation__list_root {
  display: flex;
  flex-wrap: wrap;
}

.main-navigation__item {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.main-navigation__item_nested {
  margin-left: 0;
  margin-right: 0;
}

.main-navigation__link {
  display: inline-block;
  color: blue;
  text-align: center;
  font-size: 1.125rem;
  text-decoration: none;
}

.main-navigation__link:hover,
.main-navigation__link:focus {
  text-decoration: underline;
}

.main-navigation__link_root {
  padding: 1rem 0.5rem;
}

.dropdown {
  position: relative;
}

.dropdown__title {
  padding: 1rem 0.5rem;
  color: blue;
  text-align: center;
  font-size: 1.125rem;
  pointer-events: none;
}

.dropdown__open-triangle {
  display: inline-block;
  vertical-align: baseline;
  border: 0.35rem solid transparent;
  border-top-color: rgba(0, 0, 255, 0.45);
  margin-left: 0.25em;
  transform: translateY(0.15em);
}

.dropdown:hover .dropdown__menu,
.dropdown .ally-focus-within.dropdown__menu {
  opacity: 1;
  transform: rotateX(0) translateX(-50%);
}

.dropdown__menu {
  position: absolute;
  top: calc(100% - 0.25rem);
  left: 50%;
  min-width: 150px;
  padding: 0.5em 0;
  border-radius: 4px;
  box-shadow: 0 0.15em 0.25em rgba(0, 0, 0, 0.25);
  background-color: #fff;
  transform: rotateX(-90deg) translateX(-50%);
  transform-origin: top center;
  opacity: 0.3;
  transition: 280ms all 120ms ease-out;
}

.dropdown__link {
  display: block;
  padding: 0.5em;
  color: #444;
}