Vue实现时间轴效果

<template>
  <div class="m-timeline-area">
    <div class="m-timeline">
      <div
        :class="['m-timeline-item', {'last': n === totalDots}]"
        v-for="n in totalDots"
        :key="n">
        <div class="u-tail"></div>
        <div class="u-dot"></div>
        <div class="u-content">
          <p>{{ timelineDesc[n-1] }}</p>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: 'Timeline',
  props: {
    timelineDesc: {
      type: Array,
      default: () => {
        return []
      }
    },
    totalDots: {
      type: Number,
      default: 3
    }
  }
}
</script>
<style lang="less" scoped>
@blue: #1890ff;
@green: #52c41a;
@red: #f5222d;
@gray: rgba(0,0,0,.25);
.m-timeline-area {
  width: 360px;
  margin: 30px auto;
  .m-timeline {
    .m-timeline-item {
      position: relative;
      padding-bottom: 30px;
      .u-tail {
        position: absolute;
        top: 10px;
        left: 5px;
        height: calc(100% - 10px);
        border-left: 2px solid #e8e8e8; // 实线
        // border-left: 2px dotted #e8e8e8; // 点线
        // border-left: 2px dashed #e8e8e8; // 虚线
      }
      .u-dot {
        position: absolute;
        width: 8px;
        height: 8px;
        border: 2px solid @blue;
        border-radius: 50%;
      }
      .u-content {
        position: relative;
        top: -6px;
        margin-left: 25px;
        word-break: break-word;
        line-height: 24px;
      }
    }
    .last {
      .u-tail {
        display: none;
      }
    }
  }
}
</style>

<Timeline :totalDots="5" :timelineDesc="timelineDesc" />
import Timeline from '@/components/Timeline'
components: {
    Timeline
}
timelineDesc: ['Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.', 'Create a services site', 'Create a services site', 'Create a services site', 'Create a services site']