vue+swiper实现时间轴效果

<template>
  <div class="hello" style="height:100%;width:100%;position:relative;">
    <div class="swiperlist">
      <div class="swipers">
        <div class="swiper-container">
          <div class="swiper-wrapper">
            <div class="swiper-slide" v-for="(activity, index) in superurl" :key="index">
              <div style="padding-left: 4px;">
                <div class="step-line"></div>
                <div class="step-content">
                  <div class="step-num"></div>
                  <div class="sub_title">{{activity.img}}</div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div class="buttom" v-if="superurl.length>2">
          <div class="swiper-button-prev"></div>
          <div class="swiper-button-next"></div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import Swiper from "swiper";
import "../../../../../node_modules/swiper/css/swiper.min.css";
import baseMap from "./baseMap.vue";
import "../../../../../static/mapbox/css/map.css";
export default {
  name: "Map",
  components: {
    baseMap
  },
  data() {
    return {
      superurl: [
        {
          url: "",
          img: "2019-01"
        },
        {
          url: "",
          img: "2019-02"
        },
        {
          url: "",
          img: "2019-03"
        },
        {
          url: "",
          img: "2019-04"
        },
        {
          url: "",
          img: "2019-05"
        },
        {
          url: "",
          img: "2019-06"
        }
      ]
    };
  },
  watch: {},
  methods: {},
  mounted() {
    var mySwiper = new Swiper(".swiper-container", {
      slidesPerView: 3, //显示三个轮播
      centeredSlides: true, //设定为true时，active slide会居中，而不是默认状态下的居左。
      centerInsufficientSlides: true, //开启这个参数，当slides的总数小于slidesPerView时，slides居中。不适用于loop模式和slidesPerColumn
      centeredSlidesBounds: true, //使得第一个和最后一个Slide 始终贴合边缘。
      // loop: true, //循环
      // autoplay: true, //自动播放
      direction: "vertical", //竖屏
      navigation: {
        nextEl: ".swiper-button-next",
        prevEl: ".swiper-button-prev"
      }
    });
  }
};
</script>
<style scoped>
.swiperlist {
  width: 90px;
  height: 256px;
  position: absolute;
  background: #f5f5f5;
  left: 5px;
  top: 205px;
  overflow: hidden;
  padding: 32px 0;
  border-radius: 6px;
}
.swipers {
  width: 100%;
  height: 250px;
  overflow: hidden;
}
.swiper-container {
  height: 250px !important;
}
.swiper-slide-active {
  color: #3a70ca;
}
.swiper-button-prev,
.swiper-container-rtl .swiper-button-next {
  left: 28px;
  right: auto;
  top: 15px;
  transform: rotate(90deg);
  color: #3a70ca;
}
.swiper-button-next,
.swiper-container-rtl .swiper-button-prev {
  top: 94%;
  transform: rotate(90deg);
  left: 28px;
  color: #3a70ca;
}
.swiper-button-next:after,
.swiper-button-prev:after {
  font-size: 25px;
}
.sub_title {
  margin-left: 15px;
  margin-top: -19px;
}
.step-num {
  display: inline-block;
  height: 2px;
  width: 2px;
  color: #fff;
  background-color: #3a70ca;
  line-height: 30px;
  border-radius: 50%;
  text-align: center;
  border: 2px solid #3a70ca;
  margin-top: 36px;
}
.step-num:after {
  content: "";
  width: 2px;
  height: 84px;
  border-left: 1.5px dotted #3a70ca;
  /* background-color: #3a70ca; */
  position: absolute;
  top: 0px;
  margin-left: -1px;
}
</style>