/* Séparateur uniquement entre météo (3e) et datetime (4e) */
.header-widgets > *:nth-child(3) {
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  padding-right: 20px;
  margin-right: 20px;
}

.header-widgets > *:nth-child(3)::after {
  content: "";
  position: absolute;
  right: -15px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.15);
}