CSS无限水平滚动与关键帧?

时间:2016-11-19 22:48:28

标签: css css3 css-animations keyframe

作为一名学生,我实际上正在制作自己的作品集。 对于标题,我尝试创建天空效果,图像水平滚动。我使用CSS和关键帧,我的问题是当图像结束时,它“重置”并且不会继续平滑滚动。 有没有办法让它“无限期地”继续下去? (我把持续时间改为5秒只是为了不让你等到40秒:p)

@keyframes animatedBackground {
  from { background-position: 0 0; }
  to { background-position: 100% 0; }
}
#header-top {
  height: 190px;
  background-image: url('http://image.noelshack.com/fichiers/2016/46/1479595480-clouds.png');
  background-repeat: repeat-x;
  animation: animatedBackground 5s linear infinite;
  line-height: 400px;

}
    <div id="header-top">
    </div>

1 个答案:

答案 0 :(得分:8)

我刚刚剪裁了你的图像,所以最后的一行与开始一致。然后,我将animatedBackground关键帧修改为在图像的另一端结束。

Explanation Image

裁剪图片: Cropped Clouds

工作原理

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@keyframes animatedBackground {
  from {
    left: 0px;
  }
  90% {
    left: -562px;
  }
  100%{left: 0px;}
}
#header-top {
  height: 190px;
  width: 562px;
  overflow-x: auto;
  overflow-y: hidden;
}
* {
  margin: 0;
  padding: 0;
  font-family:sans-serif;
}
.inner-cont {
  width: 1126px;
  position: relative;
  animation: animatedBackground 4s linear infinite;
}
img{
  border-right:1px solid black;
  box-sizing:border-box;
}
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<div id="header-top">
  <div class='inner-cont'>
    <img src="https://archive.org/download/clouds-tiled/clouds-tiled.png" /><img src="https://archive.org/download/clouds-tiled/clouds-tiled.png" />
  </div>
</div>
<h3>^ How it actually works(almost) ^</h3>
<h4>The spinback doesn't actually get animated, but it happens <br/>(The line separates the looped images from each other)</h4>
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最终结果

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@keyframes animatedBackground {
  from { background-position: 0px 0; }
  to { background-position: -562px 0; }
}
#header-top {
  height: 190px;
  width:100%;
  background-image: url('https://archive.org/download/clouds-tiled/clouds-tiled.png');
  background-repeat: repeat-x;
  animation: animatedBackground 2s linear infinite;
  line-height: 400px;

}
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<div id="header-top">
    </div>
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