纯css3 轮播图利用keyframes

效果：

关键点：利用keyframes 原理：infinite

注意点：在处理关键帧动画的时候，注意处理好总共花费的 animation-duration：time 与每帧延延迟的时间的交错；要让动画显得层次感，处理好每帧的延迟时间；

多注意时间的穿插；效果更很好；下面只是我的小插图；画的不一定对;

以下是我的代码；有兴趣拷贝来看看，仅作为我的练习记录；关键帧要兼容其他浏览器，自行补充前缀即可；

下面附上源码；

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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>纯css轮播图</title>
</head>
 
<body>
 
<style>
*{ margin:0 ; padding:0}
ul,li{ list-style:none; margin:0; padding:0;}
 
.box,
.box:after {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    z-index: 0;
}
.box:after {
    content: '';
    background: transparent url(../images/pattern.png) repeat top left;
}
.box li span {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: none; background-color:#333;
    opacity: 0;
    z-index: 0;
    -webkit-backface-visibility: hidden;
    -webkit-animation: imageAnimation 18s linear infinite 0s;
    -moz-animation: imageAnimation 18s linear infinite 0s;
    -o-animation: imageAnimation 18s linear infinite 0s;
    -ms-animation: imageAnimation 18s linear infinite 0s;
    animation: imageAnimation 18s linear infinite 0s;
}
.box li div {
    z-index: 1000;
    position: absolute;
    bottom: 30px;
    left: 0px;
    width: 100%;
    text-align: center;
    opacity: 0;
    -webkit-animation: titleAnimation 18s linear infinite 0s;
    -moz-animation: titleAnimation 18s linear infinite 0s;
    -o-animation: titleAnimation 18s linear infinite 0s;
    -ms-animation: titleAnimation 18s linear infinite 0s;
    animation: titleAnimation 18s linear infinite 0s;
}
.box li div h3 {
    font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
    font-size: 160px;
    padding: 0 30px;
    line-height: 120px;
    color: rgba(255,255,255,0.8);
}
.box li:nth-child(1) span { background-image: url(../images/love5.jpg) }
.box li:nth-child(2) span {
    background-image: url(../images/love3.jpg);
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s;
}
.box li:nth-child(3) span {
    background-image: url(../images/love1.jpg);
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s;
}
.box li:nth-child(2) div {
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s;
}
.box li:nth-child(3) div {
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s;
}
 
 
@-webkit-keyframes imageAnimation { 
    0% {
        opacity: 0;
        -webkit-animation-timing-function: ease-in;
    }
    11% {
        opacity: 1;
        -webkit-transform: scale(1.05);
        -webkit-animation-timing-function: ease-out;
    }
    30% {
        opacity: 1;
        -webkit-transform: scale(1.1);
    }
    35% {
        opacity: 0;
        -webkit-transform: scale(1.1) translateY(-20%);
    }
    49% {
        opacity: 0;
        -webkit-transform: scale(1.1) translateY(-60%);
    }
    100% { opacity: 0 ;  -webkit-transform: scale(1.1) translateY(-100%);}
}
 
 
@-moz-keyframes imageAnimation { 
    0% {
        opacity: 0;
        -moz-animation-timing-function: ease-in;
    }
    11% {
        opacity: 1;
        -moz-transform: scale(1.05);
        -moz-animation-timing-function: ease-out;
    }
    30% {
        opacity: 1;
        -moz-transform: scale(1.1);
    }
    35% {
        opacity: 0;
        -moz-transform: scale(1.1) translateY(-20%);
    }
    49% {
        opacity: 0;
        -moz-transform: scale(1.1) translateY(-60%);
    }
    100% { opacity: 0 ;  -moz-transform: scale(1.1) translateY(-100%);}
}
 
 
@keyframes imageAnimation { 
    0% {
        opacity: 0;
        animation-timing-function: ease-in;
    }
    11% {
        opacity: 1;
        transform: scale(1.05);
        animation-timing-function: ease-out;
    }
    30% {
        opacity: 1;
        transform: scale(1.1);
    }
    35% {
        opacity: 0;
        transform: scale(1.1) translateY(-20%);
    }
    49% {
        opacity: 0;
        transform: scale(1.1) translateY(-60%);
    }
    100% { opacity: 0 ;  transform: scale(1.1) translateY(-100%);}
}
 
@-webkit-keyframes titleAnimation { 
    0% {
        opacity: 0;
        -webkit-transform: translateY(-300%);
    }
    8% {
        opacity: 1;
        -webkit-transform: translateY(0%);
    }
    22% {
        opacity: 1;
        -webkit-transform: translateY(0%);
    }
    28% {
        opacity: 0;
        -webkit-transform: translateY(100%);
    }
    35% { opacity: 0 }
    100% { opacity: 0 }
}
 
 
@-moz-keyframes titleAnimation { 
    0% {
        opacity: 0;
        -moz-transform: translateY(-300%);
    }
    8% {
        opacity: 1;
        -moz-transform: translateY(0%);
    }
    22% {
        opacity: 1;
        -moz-transform: translateY(0%);
    }
    28% {
        opacity: 0;
        -moz-transform: translateY(100%);
    }
    35% { opacity: 0 }
    100% { opacity: 0 }
}
 
@keyframes titleAnimation { 
    0% {
        opacity: 0;
        transform: translateY(-300%);
    }
    8% {
        opacity: 1;
        transform: translateY(0%);
    }
    22% {
        opacity: 1;
        transform: translateY(0%);
    }
    28% {
        opacity: 0;
        transform: translateY(100%);
    }
    35% { opacity: 0 }
    100% { opacity: 0 }
}
 
/* Show at least something when animations not supported */
.no-cssanimations .box li span{
    opacity: 1;
}
 
 
 
</style>
        <ul class="box">
            <li><span>Image 01</span><div class="title"><h3>第1张</h3></div></li>
            <li><span>Image 02</span><div class="title"><h3>第2张</h3></div></li>
            <li><span>Image 03</span><div class="title"><h3>第3张</h3></div></li>
        </ul>
         
</body>
</html>其他：1，相同参数的可以写在一起；2，可以只有to， 也可以只有类似50%  省略0%和100%；因为后面的会重置前面的样式；