CSS3 实现飘动的云朵动画

运行效果

ht ML

<head>
  < ;m eta charset='UTF-8'>
  <t IT le>CSS3 Cloud Animations By Montana Flynn</title>
</head>

<body>
  <div class="sky">
    <div class="moon"></div>
    <div class="clouds_two"></div>
    <div class="clouds_one"></div>
    <div class="clouds_t hr ee"></div>
  </div>
</body>

css

html, body {
  m arg in: 0;
  h ei ght: 100%
}

.sky {
  height: 480px;
  background:  # 007fd5;
  position: relative;
  overflow: hidden;
  - webkit -animation: sky_background 50s ease-out infinite;
  -moz-animation: sky_background 50s ease-out infinite;
  -o-animation: sky_background 50s ease-out infinite;
  -webkit -t ransform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}

.moon {
  background: url("http://i. img ur .COM /wFXd68N.png");
  position: absolute;
  left: 0;
  height: 300%;
  width: 300%;
  -webkit-animation: moon 50s linear infinite;
  -moz-animation: moon 50s linear infinite;
  -o-animation: moon 50s linear infinite;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}

.clouds_one {
  background: url("http://www.scri8e.com/stars/PNG_Clouds/zc06.png?filen am e=./zc06.png&am p; w0=800&h0s=289&imgTy PE =3& h1 =50&w1=140");
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 300%;
  -webkit-animation: cloud_one 50s linear infinite;
  -moz-animation: cloud_one 50s linear infinite;
  -o-animation: cloud_one 50s linear infinite;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}

.clouds_two {
  background: url("http://freepngimages.com/wp-content/uploads/2016/02/clouds-transparent-background-2.png");
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 300%;
  -webkit-animation: cloud_two 75s linear infinite;
  -moz-animation: cloud_two 75s linear infinite;
  -o-animation: cloud_two 75s linear infinite;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}

.clouds_three {
  background: url("http://montanaflynn.me/lab/css-clouds/images/cloud_three.png");
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 300%;
  -webkit-animation: cloud_three 100s linear infinite;
  -moz-animation: cloud_three 100s linear infinite;
  -o-animation: cloud_three 100s linear infinite;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}

@-webkit-keyframes sky_background {
  0% {
    background: #007fd5;
    color: #007fd5
  }
  50% {
    background: #000;
    color: #a3d9ff
  }
  100% {
    background: #007fd5;
    color: #007fd5
  }
}

@-webkit-keyframes moon {
  0% {
    opacity: 0;
    left: -200% -moz-transform: scale(0.5);
    -webkit-transform: scale(0.5);
  }
  50% {
    opacity: 1;
    -moz-transform: scale(1);
    left: 0% bottom: 250px;
    -webkit-transform: scale(1);
  }
  100% {
    opacity: 0;
    bottom: 500px;
    -moz-transform: scale(0.5);
    -webkit-transform: scale(0.5);
  }
}

@-webkit-keyframes cloud_one {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

@-webkit-keyframes cloud_two {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

@-webkit-keyframes cloud_three {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

@-moz-keyframes sky_background {
  0% {
    background: #007fd5;
    color: #007fd5
  }
  50% {
    background: #000;
    color: #a3d9ff
  }
  100% {
    background: #007fd5;
    color: #007fd5
  }
}

@-moz-keyframes moon {
  0% {
    opacity: 0;
    left: -200% -moz-transform: scale(0.5);
    -webkit-transform: scale(0.5);
  }
  50% {
    opacity: 1;
    -moz-transform: scale(1);
    left: 0% bottom: 250px;
    -webkit-transform: scale(1);
  }
  100% {
    opacity: 0;
    bottom: 500px;
    -moz-transform: scale(0.5);
    -webkit-transform: scale(0.5);
  }
}

@-moz-keyframes cloud_one {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

@-moz-keyframes cloud_two {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

@-moz-keyframes cloud_three {
  0% {
    left: 0
  }
  100% {
    left: -200%
  }
}

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更新时间：2023-04-27 阅读：25次