.slider_container {
margin: 0px auto;
width: 820px;
height: 300px;
position: relative;
border: 0px solid;
border-color: #fff;
border-bottom-width: 0px;
background-color: #f5f5f5;
box-shadow: #666 0 0 5px;
}

.slider_container div {
position: absolute;
top: 0;
left: 0;
opacity: 0;
filter: alpha(opacity=0);
}

.slider_container div {
-webkit-animation: round 25s linear infinite;
animation: round 25s linear infinite;
}

@-webkit-keyframes round {
4% {
opacity: 1;
filter: alpha(opacity=100);
/* 0 - 1秒 淡入*/
}
20% {
opacity: 1;
filter: alpha(opacity=100);
/* 1- 5秒靜止*/
}
24% {
opacity: 0;
filter: alpha(opacity=0);
/* 5-6秒淡出*/
}
}
@keyframes round {
4% {
opacity: 1;
filter: alpha(opacity=100);
/* 0 - 1秒 淡入*/
}
20% {
opacity: 1;
filter: alpha(opacity=100);
/* 1- 5秒靜止*/
}
24% {
opacity: 0;
filter: alpha(opacity=0);
/* 5-6秒淡出*/
}
}
每張圖片進場時間相隔5秒

.slider_container div:nth-child(5) {
-webkit-animation-delay: 0s;
animation-delay: 0s;
}

.slider_container div:nth-child(4) {
-webkit-animation-delay: 5s;
animation-delay: 5s;
}

.slider_container div:nth-child(3) {
-webkit-animation-delay: 10s;
animation-delay: 10s;
}

.slider_container div:nth-child(2) {
-webkit-animation-delay: 15s;
animation-delay: 15s;
}

.slider_container div:nth-child(1) {
-webkit-animation-delay: 20s;
animation-delay: 20s;
}

.slider_container span {
color: #000;
background: #fff;
position: absolute;
left: 0%;
top: 300px;
width: 820px;
height: 100px;
font-size: 30px;
text-align: center;
line-height: 100px;
-webkit-transform:scaleY(0);
-ms-transform:scaleY(0);
transform:scaleY(0);
-webkit-transition: all 0.5s ease-in-out;
transition: all 0.5s ease-in-out;
}

.slider_container:hover span {
width: 100%;
-webkit-transform:scaleY(1);
-ms-transform:scaleY(1);
transform:scaleY(1);
}