vue过渡动画

<transition name="fade-transform" mode="out-in">
    <router-view />
</transition>

.fade-transform-leave-active,
.fade-transform-enter-active {
  transition: all .5s;
}

.fade-transform-enter {
  opacity: 0;
  transform: translateX(-30px);
}

.fade-transform-leave-to {
  opacity: 0;
  transform: translateX(30px);
}