.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; } }