Element Timeline implementation

<div class="block">
  <div class="radio">
    Sorting:
    <el-radio-group v-model="reverse">
      <el-radio :label="true">Reverse order</el-radio>
      <el-radio :label="false">Positive sequence</el-radio>
    </el-radio-group>
  </div>

  <el-timeline :reverse="reverse">
    <el-timeline-item
      v-for="(activity, index) in activities"
      :key="index"
      :timestamp="activity.timestamp">
      {{activity.content}}
    </el-timeline-item>
  </el-timeline>
</div>

<script>
  export default {
    data() {
      return {
        reverse: true,
        activities: [{
          content: 'The activity started as scheduled',
          timestamp: '2018-04-15'
        }, {
          content: 'Passed review',
          timestamp: '2018-04-13'
        }, {
          content: 'Created successfully',
          timestamp: '2018-04-11'
        }]
      };
    }
  };
</script>

<div class="block">
  <el-timeline>
    <el-timeline-item
      v-for="(activity, index) in activities"
      :key="index"
      :icon="activity.icon"
      :type="activity.type"
      :color="activity.color"
      :size="activity.size"
      :timestamp="activity.timestamp">
      {{activity.content}}
    </el-timeline-item>
  </el-timeline>
</div>

<script>
  export default {
    data() {
      return {
        activities: [{
          content: 'Support the use of icons',
          timestamp: '2018-04-12 20:46',
          size: 'large',
          type: 'primary',
          icon: 'el-icon-more'
        }, {
          content: 'Support custom colors',
          timestamp: '2018-04-03 20:46',
          color: '#0bbd87'
        }, {
          content: 'Support custom size',
          timestamp: '2018-04-03 20:46',
          size: 'large'
        }, {
          content: 'Default style node',
          timestamp: '2018-04-03 20:46'
        }]
      };
    }
  };
</script>

<div class="block">
  <el-timeline>
    <el-timeline-item timestamp="2018/4/12" placement="top">
      <el-card>
        <h4>Update Github template</h4>
        <p>Wang Xiaohu submitted on 2018/4/12 20:46</p>
      </el-card>
    </el-timeline-item>
    <el-timeline-item timestamp="2018/4/3" placement="top">
      <el-card>
        <h4>Update Github template</h4>
        <p>Wang Xiaohu submitted on 2018/4/3 20:46</p>
      </el-card>
    </el-timeline-item>
    <el-timeline-item timestamp="2018/4/2" placement="top">
      <el-card>
        <h4>Update Github template</h4>
        <p>Wang Xiaohu submitted on 2018/4/2 20:46</p>
      </el-card>
    </el-timeline-item>
  </el-timeline>
</div>