动画与流畅的效果（子像素动画）CSS背景位置 [英] Animate CSS background-position with smooth results (sub-pixel animation)

问题描述

我试图动画的div的背景位置，慢慢地，但无需生涩的运动吧。你可以在这里看到我目前的努力的结果：

I'm trying to animate the background-position of a div, slowly, but without it having jerky movement. You can see the result of my current efforts here:

http://jsfiddle.net/5pVr4/2/

@-webkit-keyframes MOVE-BG {
    from {
        background-position: 0% 0%
    }
    to { 
        background-position: 187% 0%
    }
}

#content {
    width: 100%;
    height: 300px;
    background: url(http://www.gstatic.com/webp/gallery/1.jpg) 0% 0% repeat;
    text-align: center;
    font-size: 26px;
    color: #000;

    -webkit-animation-name: MOVE-BG;
    -webkit-animation-duration: 100s;
    -webkit-animation-timing-function: linear;
    -webkit-animation-iteration-count: infinite;
}

我已经在这几个小时，也找不到任何将缓慢平滑的动画在子像素级别。我现在的例子就是从这个页面上的例子code制成：<一href=\"http://css-tricks.com/parallax-background-css3/\">http://css-tricks.com/parallax-background-css3/

动画的平滑度可以在此页面的翻译（）的例子可以看出以后我：

The smoothness of animation I'm after can be seen on this page's translate() example:

<一个href=\"http://css-tricks.com/tale-of-animation-performance/\">http://css-tricks.com/tale-of-animation-performance/

如果它不能与背景位置做的，是有办法伪造重复背景与多个div使用翻译这些div移动？

If it can't be done with the background-position, is there a way to fake the repeating background with multiple divs and move those divs using translate?

推荐答案

结帐这个例子：

http://jsfiddle.net/5pVr4/4/

<div id="content">Foreground content
  <div class="bg"></div>
</div>

@-webkit-keyframes MOVE-BG {
   from {
     -webkit-transform: translateX(0);
   }
   to { 
     -webkit-transform: translateX(-187%);
   }
}

#content {
  height: 300px;
  text-align: center;
  font-size: 26px;
  color: #000;
  position:relative;
}

.bg{
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: -1;
  background: url(http://www.gstatic.com/webp/gallery/1.jpg) 0% 0% repeat;

  -webkit-animation-name: MOVE-BG;
  -webkit-animation-duration: 100s;
  -webkit-animation-timing-function: linear;
  -webkit-animation-iteration-count: infinite;
}

这篇关于动画与流畅的效果（子像素动画）CSS背景位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！