如下代码已实现手动轮播，求教怎么实现自动轮播？刚进入代码圈的小白，求大神赐教。非常感谢。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
body{
background-size: cover;
}
img{
width: 900px;
height: 330px;
}
.photo{
width: 900px;
height: 330px;
/* border: 1px solid #555555;*/
margin: auto auto;
position: relative;
background: #B0C4DE;
box-shadow: 0 10px 80px rgba(0,0,0,0.6);
animation: ma 5s ease-out infinite alternate;
}
#photos {/*---设置总的图片宽度--通过位移来达到轮播效果----*/
position: absolute;z-index:9px;
width: calc(300px * 6);/*---修改图片数量的话需要修改下面的动画参数*/
}
.photo input{
display: none;
}
.image{
position: absolute;
top: -25px;
left: -25px;
width: 500px;
height: 330px;
margin: 25px 25px;
opacity: 0;
transition: all 0.7s;
}
.nav label{
width: 150px;
height: 330px;
/*margin: 0px 0px;*/
position: absolute;
z-index: 10;
opacity: 0;
display: none;
cursor: pointer;
transition: opacity 0.2s;
color: #ffffff;
font-size: 50px;
line-height: 320px;
text-align: center;
text-shadow: 0 0 15px #555555);
}
.leftjianbian{
background: linear-gradient(right , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -o-linear-gradient(right , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -ms-linear-gradient(right , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -moz-linear-gradient(right , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -webkit-linear-gradient(right , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
}
.rightjianbian{
background: linear-gradient(left , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -o-linear-gradient(left , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -ms-linear-gradient(left , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -moz-linear-gradient(left , rgba(250, 242, 239,0) 1% , rgba(158, 148, 166,0.5) 100%);
background: -webkit-linear-gradient(left , rgba(250, 242, 239,0) 10% , rgba(158, 148, 166,0.5) 100%);
}
.image:hover + .nav label{
opacity: 0.5;
}
.nav label:hover{
opacity: 1;
}
.nav .down{
right: 0;
}
input:checked + .control .image{
opacity: 1;
transform: scale(1);
transition: all 1s;
}
input:checked + .control .nav label{
display: block;
}
.dots{
width:100%;
height: 20px;
position: absolute;
bottom: 30px;
text-align: center;
}
.dot{
width: 15px;
height: 15px;
margin: 0px 5px;
border-radius: 50%;
position: relative;
display: inline-block;
background: rgba(0, 0, 0,0.4);
}
input#img1:checked ~ .dots label#dot1,
input#img2:checked ~ .dots label#dot2,
input#img3:checked ~ .dots label#dot3,
input#img4:checked ~ .dots label#dot4,
input#img5:checked ~ .dots label#dot5,
input#img6:checked ~ .dots label#dot6{
background: rgba(0,0,0,0.7);
}
</style>
</head>
<body>
<div class="photo" id="photo">
<!--//1-->
<input type="radio" name="btn" id="img1" checked/>
<div class="control">
<div class="image"><a href="#"><img src="../img/3.png"></a></div>
<div class="nav">
<label for="img6" class="up leftjianbian"><</label>
<label for="img2" class="down rightjianbian">></label>
</div>
</div>
<!--//2-->
<input type="radio" name="btn" id="img2"/>
<div class="control">
<div class="image"><a href="#"><img src="../img/2.png"></a></div>
<div class="nav">
<label for="img1" class="up leftjianbian"><</label>
<label for="img3" class="down rightjianbian">></label>
</div>
</div>
<!--//3-->
<input type="radio" name="btn" id="img3"/>
<div class="control">
<div class="image"><a href="#"><img src="../img/5.png"></a></div>
<div class="nav">
<label for="img2" class="up leftjianbian"><</label>
<label for="img4" class="down rightjianbian">></label>
</div>
</div>
<!--//4-->
<input type="radio" name="btn" id="img4"/>
<div class="control">
<div class="image"><a href="#"><img src="../img/4.png"></a></div>
<div class="nav">
<label for="img3" class="up leftjianbian"><</label>
<label for="img5" class="down rightjianbian">></label>
</div>
</div>
<!--//5-->
<input type="radio" name="btn" id="img5"/>
<div class="control">
<div class="image"><a href="#"><img src="../img/1.png"></a></div>
<div class="nav">
<label for="img4" class="up leftjianbian"><</label>
<label for="img6" class="down rightjianbian">></label>
</div>
</div>
<!--//6-->
<input type="radio" name="btn" id="img6"/>
<div class="control">
<div class="image"><a href="#"><img src="../img/6.png"></a></div>
<div class="nav">
<label for="img5" class="up leftjianbian"><</label>
<label for="img1" class="down rightjianbian">></label>
</div>
</div>
<div class="dots">
<label for="img1" class="dot" id="dot1"></label>
<label for="img2" class="dot" id="dot2"></label>
<label for="img3" class="dot" id="dot3"></label>
<label for="img4" class="dot" id="dot4"></label>
<label for="img5" class="dot" id="dot5"></label>
<label for="img6" class="dot" id="dot6"></label>
</div>
</div>
</body>
</html>
