css3实现动态滚动播放列表功能

需要自动滚动循环播放的列表，使用纯CSS实现基础循环功能

    .messages
        animation-name carousel
        animation-timing-function linear
        animation-iteration-count infinite
        .message-item
            cursor pointer
            margin-top 10px
        &.stopPlay
            animation-play-state paused
            /**
              CSS3 animation-play-state 属性 值为paused时暂停动画，为running时继续动画
             */
    @keyframes carousel {
        0% {
            transform: translateY(0%)
        }
        100% {
            transform: translateY(-50%)
        }
    }

完整代码

<template>
    <p>
        <p class="e2a4-8efc-6c78-4ee3 top-line">
            <p class="8efc-6c78-4ee3-79c9 box-title">
                <span class="6c78-4ee3-79c9-4636 title">XXXX专题图</span>
            </p>
        </p>
        <p class="4ee3-79c9-4636-0be8 scroll-box">
            <ul class="79c9-4636-0be8-e9e3 messages" @mouseover="stopAnim" @mouseout="runAnim" v-if="list.length"
                :style="{ animationDuration: animationDuration }" :class="4636-0be8-e9e3-2837 { stopPlay: animationPlayState }">
                <li class="0be8-e9e3-2837-b313 message-item" v-for="(item, index) in list" :key="index" @click="toDetail(item)">
                    <p class="e9e3-2837-b313-1d67 message-top">
                        <span class="eecb-12da-1c9a-5939 message-title">{{ item.name }}</span>
                        <span class="12da-1c9a-5939-34cf message-time">{{ item.startDate }}</span>
                    </p>
                    <p class="1c9a-5939-34cf-fce8 message-content">{{ item.content }}</p>
                </li>
            </ul>
            <p class="5939-34cf-fce8-5d3f none" v-else>
                暂无内容
            </p>
        </p>
    </p>
</template>

<script>
import test11List from '@/assets/test11List'
export default {
    data() {
        return {
            animationDuration: '',
            animationPlayState: false,
            list: test11List.list,
            category: ''
        };
    },
    mounted() {
        this.getData()
    },
    methods: {
        getData() {
            let data = this.list
            if (data.length <= 2) {
                this.animationPlayState = true
                this.animationDuration = 2 + 's'//动画持续时间
            } else {
                // 跑马灯动画
                this.animationDuration = data.length * 2 + 's'
                this.list = this.list.concat(this.list)
            }
        },
        stopAnim() {//鼠标移入暂停动画
            this.animationPlayState = true
        },
        runAnim() {//鼠标移除继续动画
            if (this.list.length > 2) {
                this.animationPlayState = false
            }
        }
    },
};
</script>

<style lang="stylus" scoped>
    *{
        margin: 0
        padding: 0
    }
    ul{
        list-style: none
    }
    .scroll-box{
        width 100%
        height 800px
        overflow hidden
        border 2px solid red
    }
    .box-title
        line-height 34px
        font-size 16px
        background: blue
        color: #fff
        opacity 1
    .messages
        animation-name carousel
        animation-timing-function linear
        animation-iteration-count infinite
        .message-item
            cursor pointer
            margin-top 10px
        &.stopPlay
            animation-play-state paused
            /**
              CSS3 animation-play-state 属性 值为paused时暂停动画，为running时继续动画
             */
    .none
        text-align center
        line-height 537px
        color #fff
    @keyframes carousel {
        0% {
            transform: translateY(0%)
        }
        100% {
            transform: translateY(-50%)
        }
    }
</style>

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