CSS3 transition to implement notification message carousel

<template>
  <!-- Carousel View-->
  <div id="carousel-view">
    <!-- Carousel List-->
    <ul id="carousel-list-view" :class="{ 'carousel-animated':isAnimated }">
      <li v-for="(item, index) in dataSource" :key="index">{{ item }}</li>
    </ul>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // Start animation isAnimated: false,
      // Carousel data dataSource: ['dzm', 'xyq', '啊啊']
    }
  },
  created () {
    // Start the timer setInterval(this.scroll, 1000)
  },
  methods: {
    // Scroll animation scroll () {
      // Start animation this.isAnimated = true
      // Countdown animation time setTimeout(() => {
        // Add the first element of the array to the end of the array this.dataSource.push(this.dataSource[0])
        // Remove the first element of the array this.dataSource.shift()
        // Turn off animation this.isAnimated = false
        // The animation time needs to be consistent with the time set in .carousel-animated}, 500)
    }
  }
}
</script>

<style scoped>
#carousel-view {
  width: 100%;
  height: 32px;
  background-color: red;
  overflow: hidden;
}
#carousel-list-view {
  margin: 0;
  padding: 0;
  list-style: none;
}
#carousel-list-view li {
  line-height: 32px;
  height: 32px;
}
.carousel-animated {
  transition: transform 0.5s;
  transform: translateY(-32px);
}
</style>