Question

您好我一直在尝试为我的网站开发课程中的某个项目制作一些动画。我试图通过让街道和一些山脉在无尽的环路上水平移动来创造汽车在街道上移动的错觉，但我还需要重复照片。我发现如何使用{background-position}进行此操作，但是如果没有任何建议，我无法将照片无缝滚动？

body {
  background-color: rgb(59, 193, 236);
}

#Mountains {
  transform: translate(-8px, -400px);
  animation: slide 2s linear infinite;
}

@keyframes slide {
  from {
    transform: translate(-8px, -400px);
  }
  to {
    transform: translate(1109px, -400px);
  }
}

<div id="Mountains">
  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1109" height="1500" viewBox="0 0 2100 1500">
  <metadata><?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.6-c138 79.159824, 2016/09/14-01:09:01        ">
   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <rdf:Description rdf:about=""/>
   </rdf:RDF>
</x:xmpmeta>
<?xpacket end="w"?></metadata>
<image y="316" width="2100" height="1184" 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"/>
</svg>
</div>

Answer 1

我还没有只有一个SVG的解决方案。但是如果你可以在容器中包装两个图像（不一定相同），则可以使用第二个图像的animation-delay属性轻松制作重复动画。

参见示例： https://jsfiddle.net/kxo7g714/

.mountains {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(-150px, 50px);
  animation: slide 4s linear infinite;
}

.mountains.two {
  animation-delay: -2s;
}

Answer 2

如果您只能使用一张图片，请复制图片内部的内容。该示例使用不同的颜色来说明路径的基本相同。

https://jsfiddle.net/crvpenfo/2/

@keyframes slide {
  from {
    transform: translate(0, 50px);
  }
  to {
    transform: translate( "NegativeHalfWidth" , 50px);
  }
}

无缝SVG循环

2 个答案: