/*动画*/
.fade-enter-active, .fade-leave-active {
    transition: .5s;
}
.fade-enter, .fade-leave-to {
    opacity: 0;
}

.fade-up-enter-active, .fade-up-leave-active {
    transition: .5s;
}
.fade-up-enter, .fade-up-leave-to {
    opacity: 0;
    transform: translateY(-15px);
}

.slide-in-up-active, .slide-in-up-leave-active {
    transition: .5s;
}
.slide-in-up-enter,
.slide-in-up-leave-to {
    opacity: 0;
    transform: translateY(150px);
}