.fade {
  transition: opacity 0.15s linear; }
  @media (prefers-reduced-motion: reduce) {
    .fade {
      transition: none; } }
  .fade:not(.show) {
    opacity: 0; }

.collapse:not(.show) {
  display: none; }

.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  transition: height 0.35s ease; }
  @media (prefers-reduced-motion: reduce) {
    .collapsing {
      transition: none; } }