单个元素上的CSS多个动画，没有javascript

I am trying to create an image slideshow using only CSS and no Javascript.

我正在尝试使用CSS而不是Javascript创建图像幻灯片。

I have an ALMOST working example here: http://codepen.io/k/pen/Dkhei . The problem is that the animation for the 'Previous' functionality won't pause when I stop hovering over its element.

我在这里有一个ALMOST工作示例：http：//codepen.io/k/pen/Dkhei。问题是当我停止悬停在其元素上时，“上一个”功能的动画不会暂停。

I am defining two animations on a single element, whose class name is 'imageContainer'. I am curious to know whether my syntax is wrong or if what I am trying to do is not possible.

我在一个元素上定义了两个动画，其类名是'imageContainer'。我很想知道我的语法是错误的还是我想要做的事情是不可能的。

HTML:

HTML：

<div class='carouselContainer'>
<div class='directionSelector previous'>Previous</div>
<div class='directionSelector next'>Next</div>
<div class='imagesContainer'>
  <img class='visible' src='http://ibmsmartercommerce.sourceforge.net/wp-content/uploads/2012/09/Roses_Bunch_Of_Flowers.jpeg'/>
  <img class='hidden' src='http://houseoflowers.com/wp-content/uploads/2013/03/Splendid-flowers-wallpaper-wallpapers-1920x1200-mrwallpaper-com.jpg'/>
  <img class='hidden test' src='http://wallzpoint.com/wp-content/gallery/flower-4/flower-flowers-31723005-1600-1200.jpg'/>
  <img class='hidden' src='http://images2.layoutsparks.com/1/179204/no-idea-t5-flowers.jpg'/>
  <img class='hidden' src='http://3.bp.blogspot.com/-Ca_H0XQYQI4/UQFMSauQxTI/AAAAAAAABik/WHzskd_HqqU/s1600/flowers.jpg'/>
</div>
</div>

CSS:

CSS：

.carouselContainer{
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  border: 1px solid grey;
  width: 450px;
  height: 300px; 
  position: relative;
  background-color: grey;
  margin: auto;
  overflow: hidden;
}

.directionSelector{
  width: 60px;
  height: 1.5em;
  line-height: 1.5em;
  top: 150px !important;
  position: absolute;
  cursor: pointer;
  background-color: rgba(1,1,1,.7);
  color: white;
  text-align: center;
  border-radius: 5px;
}
.previous{
  top: 0;
  left: 5px;
}
.next{
  top: 0;
  right: 5px;
}
img{
  width: 100%;
  height: 300px;
  float: left;
}
.imagesContainer{
  width: 100%;
  background-color: yellow;
  -webkit-animation-name: showImagesPrev,showImagesNext;
  -webkit-animation-duration: 5s,5s;
  -webkit-animation-play-state: paused,paused;
  -webkit-animation-fill-mode: forwards,forwards;

  -moz-animation-name: showImagesPrev,showImagesNext;
  -moz-animation-duration: 5s,5s;
  -moz-animation-play-state: paused,paused;
  -moz-animation-fill-mode: forwards,backwards;

  animation-name: showImagesPrev,showImagesNext;
  animation-duration: 5s,5s;
  animation-play-state: paused,paused;
  animation-fill-mode: forwards,backwards;

}
.previous:hover ~ div.imagesContainer{
  -webkit-animation-name: showImagesPrev;
  -webkit-animation-play-state: running; 

  -moz-animation-name: showImagesPrev;
  -moz-animation-play-state: running; 

  animation-name: showImagesPrev;
  animation-play-state: running; 
}
.next:hover ~ div.imagesContainer{
  -webkit-animation-name: showImagesNext;
  -webkit-animation-play-state: running;

  -moz-animation-name: showImagesNext;
  -moz-animation-play-state: running;

  animation-name: showImagesNext;
  animation-play-state: running;
}
@-webkit-keyframes showImagesPrev{
  from{
    margin-top: 0px;
  }
  to{
    margin-top: -1200px;
  }
}
@-moz-keyframes showImagesPrev{
  from{
    margin-top: 0px;
  }
  to{
    margin-top: -1200px;
  }
}
@keyframes showImagesPrev{
  from{
    margin-top: 0px;
  }
  to{
    margin-top: -1200px;
  }
}
@-webkit-keyframes showImagesNext{
  from{
    margin-top: -1200px;
  }
  to{
    margin-top: 0px;
  }
}
@-moz-keyframes showImagesNext{
  from{
    margin-top: -1200px;
  }
  to{
    margin-top: 0px;
  }
}
@keyframes showImagesNext{
  from{
    margin-top: -1200px;
  }
  to{
    margin-top: 0px;
  }
}

Thank you for your help :)

感谢您的帮助 ：）

1 个解决方案

#1

As per W3C animation-name property Link

根据W3C动画名称属性Link

If multiple animations are attempting to modify the same property, then the animation closest to the end of the list of names wins.

如果多个动画试图修改相同的属性，则最接近名称列表末尾的动画将获胜。

In your example showImagesPrev is referred first and showImagesNext was the last one, so it worked correctly as per W3C. If you interchange these two reference, Previous will work fine, while Next button reproduce the issue. A working Example

在您的示例中，showImagesPrev首先被引用，showImagesNext是最后一个，因此它按照W3C正常工作。如果你交换这两个引用，Previous可以正常工作，而Next按钮可以重现这个问题。一个工作实例