css3轮播渐显效果2016/11/29

 <ul class="cb-slideshow">
        <li><span>Image 01span>li>
        <li><span>Image 02span>li>
        <li><span>Image 03span>li>
        <li><span>Image 04span>li>
        <li><span>Image 05span>li>
        <li><span>Image 06span>li>
    ul>

.cb-slideshow,
.cb-slideshow:after {
    position: fixed;
    width: 100%;
    height: 80%;
    top: 100px;
    left: 0px;
    z-index: 0;
}
.cb-slideshow:after {
    content: '';
    background: transparent url(../images/pattern.png) repeat top left;
}
.cb-slideshow li span {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: none;
    opacity: 0;
    z-index: 0;
    -webkit-backface-visibility: hidden;
    -webkit-animation: imageAnimation 36s linear infinite 0s;
    -moz-animation: imageAnimation 36s linear infinite 0s;
    -o-animation: imageAnimation 36s linear infinite 0s;
    -ms-animation: imageAnimation 36s linear infinite 0s;
    animation: imageAnimation 36s linear infinite 0s;
}
.cb-slideshow li:nth-child(1) span {
    background-image: url(../img/img1.jpg)
}
.cb-slideshow li:nth-child(2) span {
    background-image: url(../img/img2.png);
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s;
}
.cb-slideshow li:nth-child(3) span {
    background-image: url(../img/img3.png);
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s;
}
.cb-slideshow li:nth-child(4) span {
    background-image: url(../img/img1.jpg);
    -webkit-animation-delay: 18s;
    -moz-animation-delay: 18s;
    -o-animation-delay: 18s;
    -ms-animation-delay: 18s;
    animation-delay: 18s;
}
.cb-slideshow li:nth-child(5) span {
    background-image: url(../img/img2.png);
    -webkit-animation-delay: 24s;
    -moz-animation-delay: 24s;
    -o-animation-delay: 24s;
    -ms-animation-delay: 24s;
    animation-delay: 24s;
}
.cb-slideshow li:nth-child(6) span {
    background-image: url(../img/img3.png);
    -webkit-animation-delay: 30s;
    -moz-animation-delay: 30s;
    -o-animation-delay: 30s;
    -ms-animation-delay: 30s;
    animation-delay: 30s;
}
/* Animation for the slideshow images */
@-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 }
}
/* Animation for the title */
@-webkit-keyframes titleAnimation {
    0% { opacity: 0 }
    8% { opacity: 1 }
    17% { opacity: 1 }
    19% { opacity: 0 }
    100% { opacity: 0 }
}
@-moz-keyframes titleAnimation {
    0% { opacity: 0 }
    8% { opacity: 1 }
    17% { opacity: 1 }
    19% { opacity: 0 }
    100% { opacity: 0 }
}
@-o-keyframes titleAnimation {
    0% { opacity: 0 }
    8% { opacity: 1 }
    17% { opacity: 1 }
    19% { opacity: 0 }
    100% { opacity: 0 }
}
@-ms-keyframes titleAnimation {
    0% { opacity: 0 }
    8% { opacity: 1 }
    17% { opacity: 1 }
    19% { opacity: 0 }
    100% { opacity: 0 }
}
@keyframes titleAnimation {
    0% { opacity: 0 }
    8% { opacity: 1 }
    17% { opacity: 1 }
    19% { opacity: 0 }
    100% { opacity: 0 }
}
/* Show at least something when animations not supported */
.no-cssanimations .cb-slideshow li span{
    opacity: 1;
}

@media screen and (max-width: 1140px) {
    .cb-slideshow li div h3 { font-size: 140px }
}
@media screen and (max-width: 600px) {
    .cb-slideshow li div h3 { font-size: 80px }
}