css - CSS中的多个图像交叉淡入淡出 - 没有(javascript

Question

是否可以在不使用 java 脚本的情况下在 CSS 中交叉淡入淡出 5 个图像？我发现了一个类似的问题: css3 image crossfade (no javascript) ，但是，它只有 CSS 代码片段；我尝试过，但无法正常工作。我是 CSS 的新手，所以无法将上面页面中提到的 CSS 链接到我的以下 HTML:

  <div id= "crossfade">
     <img class = "cone" src = "1.png" alt = "png">
     <img class = "ctwo" src = "2.png" alt = "png">
     <img class = "cthree" src = "3.png" alt = "png">
     <img class = "cfour" src = "4.png" alt = "png">
     <img class = "cfive" src = "5.png" alt = "png">
  </div>

Answer 1

如果您知道自己有多少张图片，则可以使用 CSS3 轻松完成此操作。

jsFiddle:http://jsfiddle.net/hajmd/

#crossfade > img { 
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent;
    opacity: 0;
    z-index: 0;
    -webkit-backface-visibility: hidden;
    -webkit-animation: imageAnimation 30s linear infinite 0s;
    -moz-animation: imageAnimation 30s linear infinite 0s;
    -o-animation: imageAnimation 30s linear infinite 0s;
    -ms-animation: imageAnimation 30s linear infinite 0s;
    animation: imageAnimation 30s linear infinite 0s; 
}

“-webkit-animation: imageAnimation 30s linear infinite 0s;”处的“30s”表示每个图像的动画将无限次持续 30 秒。

#crossfade > img:nth-child(2)  { 
    background-image: url(../images/2.jpg);
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s; 
}
#crossfade > img:nth-child(3) { 
    background-image: url(../images/3.jpg);
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s; 
}
#crossfade > img:nth-child(4) { 
    background-image: url(../images/4.jpg);
    -webkit-animation-delay: 18s;
    -moz-animation-delay: 18s;
    -o-animation-delay: 18s;
    -ms-animation-delay: 18s;
    animation-delay: 18s; 
}
#crossfade > img:nth-child(5) { 
    background-image: url(../images/5.jpg);
    -webkit-animation-delay: 24s;
    -moz-animation-delay: 24s;
    -o-animation-delay: 24s;
    -ms-animation-delay: 24s;
    animation-delay: 24s; 
}

@-webkit-keyframes imageAnimation { 
    0% { opacity: 0;
    -webkit-animation-timing-function: ease-in; }
    8% { opacity: 1;
         -webkit-animation-timing-function: ease-out; }
    17% { opacity: 1 }
    25% { opacity: 0 }
    100% { opacity: 0 }
}

@-moz-keyframes imageAnimation { 
    0% { opacity: 0;
    -moz-animation-timing-function: ease-in; }
    8% { opacity: 1;
         -moz-animation-timing-function: ease-out; }
    17% { opacity: 1 }
    25% { opacity: 0 }
    100% { opacity: 0 }
}

@-o-keyframes imageAnimation { 
    0% { opacity: 0;
    -o-animation-timing-function: ease-in; }
    8% { opacity: 1;
         -o-animation-timing-function: ease-out; }
    17% { opacity: 1 }
    25% { opacity: 0 }
    100% { opacity: 0 }
}

@-ms-keyframes imageAnimation { 
    0% { opacity: 0;
    -ms-animation-timing-function: ease-in; }
    8% { opacity: 1;
         -ms-animation-timing-function: ease-out; }
    17% { opacity: 1 }
    25% { opacity: 0 }
    100% { opacity: 0 }
}

@keyframes imageAnimation { 
    0% { opacity: 0;
    animation-timing-function: ease-in; }
    8% { opacity: 1;
         animation-timing-function: ease-out; }
    17% { opacity: 1 }
    25% { opacity: 0 }
    100% { opacity: 0 }
}