.nav {
  display: flex;
  background-color: #c5c5c5;
}

.nav * {
  font: 500 15px sans-serif;
}

.nav__link {
  position: relative;
  display: block;
  padding: 10px 15px;
  color: #009999;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  background-color: #c5c5c5;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.2s;
}

.nav__link:hover {
  background-color: #999999;
}

.nav__link-right {
  position: absolute;
  right: 10px;
  display: block;
  padding: 10px 15px;
  color: #009999;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  background-color: #c5c5c5;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.2s;
}

.nav__link-right:hover {
  background-color: #999999;
}

.nav__link-group {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 100%;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
}

.nav__link:hover .nav__link-group {
  opacity: 1;
  visibility: visible;
  transform: translateY(0px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
}