.city-travel {
  background: #f9f9f9;
  border-radius: 12px;
}

.city-travel > summary {
  display: flex;
  align-items: center;
  padding: 16px;
  list-style: none;
  cursor: pointer;
  border-radius: 12px;
}

.city-travel > summary::-webkit-details-marker {
  display: none;
}

.city-travel > summary:focus-visible {
  outline: 2px solid #6b8751;
  outline-offset: 2px;
}

.city-travel > summary h2 {
  margin: 0;
  font-size: 19px;
  line-height: 1.4;
}

.city-travel__arrow {
  flex: 0 0 8px;
  height: 8px;
  margin-left: 12px;
  margin-top: -4px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
}

.city-travel[open] .city-travel__arrow {
  margin-top: 4px;
  transform: rotate(225deg);
}

.city-travel__content {
  padding: 0 16px 16px;
}