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.kbanner{
position: relative;
width: 856px;
height: 366px;
background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/o_banner1.jpg) center top no-repeat;
}
.knecbg{
position: absolute;
left: 150px;
top: 77px;
width: 487px;
height: 186px;
overflow: hidden;
}
.knecone{
background: url(//img.jbzj.com/file_images/article/201306/o_pao.png) left top no-repeat;
z-index: 1;
}
.knectwo{
z-index: 2;
}
.knecthree{
background: url(//img.jbzj.com/file_images/article/201306/o_pao.png) left bottom no-repeat;
z-index: 3;
}
.knectwo i{
position: absolute;
display: block;
top: -50px;
width: 53px;
height: 56px;
overflow: hidden;
background: url(//img.jbzj.com/file_images/article/201306/o_pao.png) no-repeat -9999px -9999px;
-webkit-animation: paoi 7s 2s infinite;
-moz-animation: paoi 7s 2s infinite;
-ms-animation: paoi 7s 2s infinite;
animation: paoi 7s 2s infinite;
}
.knectwo i:nth-child(1){
left: 25px;
-webkit-animation-delay: 3s;
-moz-animation-delay: 3s;
-ms-animation-delay: 3s;
animation-delay: 3s;
background-position: -507px 0;
}
.knectwo i:nth-child(2){
left: 85px;
-webkit-animation-delay: 6s;
-moz-animation-delay: 6s;
-ms-animation-delay: 6s;
animation-delay: 6s;
background-position: -507px -64px;
}
.knectwo i:nth-child(3){
left: 190px;
-webkit-animation-delay: 4s;
-moz-animation-delay: 4s;
-ms-animation-delay: 4s;
animation-delay: 4s;
background-position: -507px -140px;
}
.knectwo i:nth-child(4){
left: 285px;
-webkit-animation-delay: 8s;
-moz-animation-delay: 8s;
-ms-animation-delay: 8s;
animation-delay: 8s;
background-position: -507px 0;
}
.knectwo i:nth-child(5){
left: 400px;
-webkit-animation-delay: 5s;
-moz-animation-delay: 5s;
-ms-animation-delay: 5s;
animation-delay: 5s;
background-position: -507px 0;
}
@-webkit-keyframes paoi {
% {
top:186px;
}
% {
top:-56px;
}
}@-moz-keyframes paoi {
% {
top:186px;
}
% {
top:-56px;
}
}@-ms-keyframes paoi {
% {
top:186px;
}
% {
top:-56px;
}
}@keyframes paoi {
% {
top:186px;
}
% {
top:-56px;
}