vue实现两列水平时间轴的示例代码

<template>
    <ul class="timelineHengBox">
        <li class="timelineHengItem" v-for="(item,index) in timelineList" :key="index" 
            :style="{left: index % 2 != 0 ? (liHalf*index)+52+'px':0,'border-right': index == timelineList.length - 2 ?'1px solid #FEFEFE' : 'none'}">
            <div class="timeline_dot" :style="{top: index % 2 != 0 ? '-5px' : '93px'}"></div>
            <div class="timeline_dot" v-show="index == timelineList.length - 2" style="right: -6px;top:93px;left: unset;"></div>
            <div class="timeline_wapper flex" :class="{'mt20': index % 2 != 0}">
                <img src="../../static/img/excelIcon.png" class="bjIcon" :style="{'margin': index % 2 != 0 ? '11px 44px 0 42px' :''}">
                <div>{{item.content}}</div>
            </div>
            <div class="timelineDate_bottom" :style="{'top': index % 2 != 0 ? '-20px' : '103px'}">{{item.dateTime}}</div>
        </li>
    </ul>
</template>

<script>
    export default {
        name: 'timelineH',
        props: {
            timelineList: {
                type: Array,
                default: []
            }
        },
        data () {
            return {
                liWidth: 496,//整个li的宽度，要和下面的li样式统一
                liHalf: 248,//这里是li一半的宽度，使中间横线上的点可以找到准确的位置
            }
        }
    }
</script>
<style scoped>
    .timelineHengBox {
        color: #fff;
        margin: 0;
        padding: 0 26px;
        width: 92%;
        padding-top: 18px;
        padding-bottom: 10px;
        margin-left: 26px;
        height: 87px;
        border-bottom: 3px solid #FEFEFE;
    }
    .timelineHengItem {
        list-style: none;
        height: 97px;
        width: 496px;
        border-left: 1px solid #FEFEFE;
        float: left;
        border-bottom: 3px solid #FEFEFE;
        position: relative;
    }
    .timelineHengItem:nth-child(2n) {
        position: absolute;
        left: 248px;
        border-bottom: 0;
        top: 115px;
    }
    .timeline_dot {
        width: 10px;
        height: 11px;
        background: #FEFEFE;
        position: absolute;
        left: -5px;
        top: 93px;
    }
    .timeline_dot:nth-child(2n) {
        top: -7px;
    }
    .timeline_wapper {
        width: 400px;
        text-align: left;
        font-size: 12px;
        color: #FFFFFF;
        line-height: 20px;
    }
    .mt20 {
        margin-top: 20px;
    }
    .bjIcon {
        width: 32px;
        height: 32px;
        margin: 31px 44px 0 42px;
    }
    .timelineDate_bottom {
        width: 80px;
        height: 20px;
        position: absolute;
        top: 103px;
        left: -60px;
        text-align: left;
        font-size: 14px;
        font-weight: bold;
        color: #FFBA00;
        margin-left: 77px;
    }
</style>

<div class="timelineHengContainer">
     <timelineH :timelineList='timelineList' />
</div>

import timelineH from "@/components/timelineH.vue";
components: {
        timelineH
},

data() {
    return {
          timelineList: [

                {
                    dateTime: '2021-09',
                    content: '欢迎挖矿，天天挖矿，得到矿石，哈哈哈,欢迎挖矿，天天挖矿，得到矿石，哈哈哈,欢迎挖矿，天天挖矿，得到矿石，哈哈哈,欢迎挖矿，天天挖矿，得到矿石，哈哈哈。'
                },{
                    dateTime: '2021-10',
                    content: '冬天要注意保暖，太冷了呢,冬天要注意保暖，太冷了呢，冬天要注意保暖，太冷了呢，冬天要注意保暖，太冷了呢。'
                },{
                    dateTime: '2021-11',
                    content: '更文挑战三十天正式开始啦，我想要投影仪，一直想买的。'
                },{
                    dateTime: '2021-12',
                    content: '就要到月底啦，新的一年开始，新年快乐，新的一年开始，新年快乐，新的一年开始，新年快乐。'
                }
            ]
    }
}

.timelineHengContainer {
        width: 100%;
        height: 227px;
        background-image: url('../../static/img/timelineBg.png');
        background-size: 100% 100%;
        background-repeat: no-repeat;
}