vuepress-theme-plume/theme/src/client/styles/utils.css

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.vp-iconify {
  margin: 0.3em;
}

/* ----------------- Transition ------------------------ */
.fade-slide-y-enter-active {
  transition: all 0.25s ease !important;
}

.fade-slide-y-leave-active {
  transition: all 0.25s cubic-bezier(0, 1, 0.3, 1) !important;
}

.fade-slide-y-enter-from,
.fade-slide-y-leave-to {
  opacity: 0;
  transform: translateY(10px);
}

.fade-slide-x-enter-active {
  transition: all 0.25s ease !important;
}

.fade-slide-x-leave-active {
  transition: all 0.25s cubic-bezier(0, 1, 0.3, 1) !important;
}

.fade-slide-x-enter-from,
.fade-slide-x-leave-to {
  opacity: 0 !important;
  transform: translateX(-10px) !important;
}