.bt-back-to-top-enter-active[data-v-e9329a6b],.bt-back-to-top-leave-active[data-v-e9329a6b]{transition:opacity .18s ease,transform .18s ease}.bt-back-to-top-enter-from[data-v-e9329a6b],.bt-back-to-top-leave-to[data-v-e9329a6b]{opacity:0;transform:translateY(.5rem)}