vue底部冒泡背景效果

<template>
  <div>
    <!-- 上拉加载，下拉刷新 -->
    <div class="container" v-for="i in 10" :key="i">
      <h3>time</h3>
      <h6>------</h6>
      <span>这是content</span>
    </div>

    <div class="bg-bubbles">
    <!-- 背景图片部分 -->
    <ul>
      <li v-for="(i,index) in 10" :key="index">
        <router-link to="/story">
          <!-- <img v-for="(item, i) in storyList" :key="item.id" :src="item.img" alt="" style="width: 100%;height:100%;" > -->
        </router-link>
      </li>
    </ul>
  </div>

  </div>
  
</template>

<script>

export default {
    
    
  name: 'Past',
  data() {
    
    
    return {
    
    
      storyList: []
    }
  },
  created() {
    
    
    this.$http.get('/mock/storyList').then((res) => {
    
    
      console.log(res)
      if (res.data.code === 200) {
    
    
        this.storyList = res.data.data
      }
    })
  }
}
</script>

<style lang="scss" scoped>
.bg-bubbles {
    
    
  position: absolute;
  // 使气泡背景充满整个屏幕；
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  // 如果元素内容超出给定的宽度和高度，overflow 属性可以确定是否显示滚动条等行为；
  overflow: hidden;


  li {
    
    
    position: absolute;
    // bottom 的设置是为了营造出气泡从页面底部冒出的效果；
    bottom: -160px;
    // 默认的气泡大小；
    width: 100px;
    height: 100px;
    background-color: rgba(255, 255, 255, 1);
    list-style: none;
    // 使用自定义动画使气泡渐现、上升和翻滚；
    animation: square 15s infinite; //infinite 无限循环
    transition-timing-function: linear;

    // 分别设置每个气泡不同的位置、大小、透明度和速度，以显得有层次感；
    &:nth-child(1) {
    
    
      left: 10%;
      width: 100px;
      height: 100px;
    }

    &:nth-child(2) {
    
    
      left: 20%;
      width: 90px;
      height: 90px;
      animation-delay: 2s;
      animation-duration: 7s;
    }

    &:nth-child(3) {
    
    
      left: 25%;
      width: 100px;
      height: 100px;
      animation-delay: 4s;
    }

    &:nth-child(4) {
    
    
      left: 40%;
      width: 100px;
      height: 100px;
      animation-duration: 8s;
      // background-color: rgba(255, 255, 255, 0.3);
    }

    &:nth-child(5) {
    
    
      left: 70%;
      width: 120px;
      height: 120px;
      animation-delay: 2s;
    }

    &:nth-child(6) {
    
    
      left: 80%;
      width: 80px;
      height: 80px;
      animation-delay: 3s;
      // background-color: rgba(255, 255, 255, 0.2);
    }

    &:nth-child(7) {
    
    
      left: 32%;
      width: 140px;
      height: 140px;
      animation-delay: 2s;
    }

    &:nth-child(8) {
    
    
      left: 55%;
      width: 140px;
      height: 140px;
      animation-delay: 4s;
      animation-duration: 15s;
    }

    &:nth-child(9) {
    
    
      left: 25%;
      width: 60px;
      height: 60px;
      animation-delay: 2s;
      animation-duration: 12s;
      // background-color: rgba(255, 255, 255, 0.3);
    }

    &:nth-child(10) {
    
    
      left: 85%;
      width: 100px;
      height: 100px;
      animation-delay: 5s;
    }
  }

  // 自定义 square 动画；
  @keyframes square {
    
    
    0% {
    
    
      opacity: 1;
      transform: translateY(0px) rotate(45deg);
    }

    // 25% {
    
    
    //   opacity: 0.75;
    //   transform: translateY(-400px) rotate(90deg)
    // }

    // 50% {
    
    
    //   opacity: 1;
    //   transform: translateY(-600px) rotate(135deg);
    // }

    100% {
    
    
      opacity: 0;
      transform: translateY(-1000px) rotate(180deg);
    }
  }
}
</style>