h5-draw-lots/src/components/FireFlies/index.vue

<template>
  <div class="fireflies-box">
    <div class="fireflies">
      <div class="firefly fly1"></div>
      <div class="firefly fly2"></div>
      <div class="firefly fly3"></div>
      <div class="firefly fly4"></div>
      <div class="firefly fly5"></div>
      <div class="firefly fly6"></div>
    </div>
  </div>
</template>

<script>
export default {
  name: 'FireFlies'
}
</script>

<style lang="less" scoped>
.fireflies-box {
  width: 100%;
  height: 100%;
  background: transparent;

  position: absolute;
  top: 0;
  left: 0;

  .fireflies {
    position: relative;
    width: 100%;
    height: 100%;
    .firefly {
      position:absolute;
      top:50%;
      left:50%;
      width: 0.3em;
      height: 0.3em;
      background-color:rgb(244,219,98);
      border-radius:50%;
      box-shadow:0 0 1.4em rgb(244,219,98);
      opacity: 0;
    }

    @tm-dur: 3s;
    @tm-dly: .3s;

    .fly1 {
      animation-delay: @tm-dly;
      animation-name: shake, flight1;
      animation-duration: @tm-dur - .6;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
    .fly2 {
      animation-delay: @tm-dly;
      animation-name: shake, flight2;
      animation-duration: @tm-dur + .5;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
    .fly3 {
      animation-delay: @tm-dly;
      animation-name: shake, flight3;
      animation-duration: @tm-dur + .8;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
    .fly4 {
      animation-delay: @tm-dly;
      animation-name: shake, flight4;
      animation-duration: @tm-dur + .5;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
    .fly5 {
      animation-delay: @tm-dly;
      animation-name: shake, flight5;
      animation-duration: @tm-dur + .2;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
    .fly6 {
      animation-delay: @tm-dly;
      animation-name: shake, flight6;
      animation-duration: @tm-dur - .3;
      animation-iteration-count: infinite;
      animation-timing-function: linear;
    }
  }

  @keyframes shake {
    0% { 
      opacity: 0.1;
    }
    85% {
      opacity: 1;
      width: 0.6em;
      height: 0.6em;
    }
    100% {
      opacity: 0;
    }
  }

  @keyframes flight1 {
    0% { 
      top: 50%;
      left: 50%;
    }
    60% {
      top: 35%;
      left: 16%;
    }
    100% {
      top:15%;
      left:5%;
    }
  }
  @keyframes flight2 {
    0% { 
      top: 50%;
      left: 50%;
    }
    60% {
      top: 45%;
      left: 15%;
    }
    100% {
      top: 55%;
      left:3%;
    }
  }
  @keyframes flight3 {
    0% { 
      top: 50%;
      left: 50%;
    }
    50% {
      top: 65%;
      left: 25%;
    }
    100% {
      top: 85%;
      left:8%;
    }
  }
  @keyframes flight4 {
    0% { 
      top: 50%;
      left: 50%;
    }
    60% {
      top: 35%;
      left: 76%;
    }
    100% {
      top: 15%;
      left: 95%;
    }
  }
  @keyframes flight5 {
    0% { 
      top: 50%;
      left: 50%;
    }
    60% {
      top: 52%;
      left: 80%;
    }
    100% {
      top: 55%;
      left: 95%;
    }
  }
  @keyframes flight6 {
    0% { 
      top: 50%;
      left: 50%;
    }
    50% {
      top: 65%;
      left: 75%;
    }
    100% {
      top: 85%;
      left: 88%;
    }
  }
}
</style>