html背景图片循环自动播放,CSS3 背景图循环播放

代码如下，我想让五张图片依次播完之后然后循环播放，这个怎么实现啊，求助大佬，谢谢啦

.prologue__end div:nth-child(1) {

background: url(../image/1.jpg) no-repeat center;

background-size: contain;

}

.prologue__end div:nth-child(2) {

background: url(../image/2.jpg) no-repeat center;

background-size: contain;

}

.prologue__end div:nth-child(3) {

background: url(../image/3.jpg) no-repeat center;

background-size: contain;

}

.prologue__end div:nth-child(4) {

background: url(../image/4.jpg) no-repeat center;

background-size: contain;

}

.prologue__end div:nth-child(5) {

background: url(../image/5.jpg) no-repeat center;

background-size: contain;

}

.prologue .prologue__end div:nth-child(1) {

animation: prologue__scale-box 2s ease 1.65s forwards;

-webkit-animation: prologue__scale-box 2s ease 1.65s forwards;

}

.prologue .prologue__end div:nth-child(2) {

animation: page__down-decoration 2s ease 3.8s forwards;

-webkit-animation: page__down-decoration 2s ease 3.8s forwards;

}

.prologue .prologue__end div:nth-child(3) {

animation: scale0-1 2s ease 6.8s forwards;

-webkit-animation:;

}

.prologue .prologue__end div:nth-child(4) {

animation: prologue__bloom-flower 2s ease 8.8s forwards;

-webkit-animation: prologue__bloom-flower 2s ease 8.8s forwards;

}

.prologue .prologue__end div:nth-child(5) {

animation: version-view__show-text-1 2s ease 10.8s forwards;

-webkit-animation: version-view__show-text-1 2s ease 10.8s forwards;

}