* { margin: 0; padding:0; }

.slider {
	display: block;
	height: 400px;
	width: 300px;
	margin: auto;
	margin-top: 20px;
	position: relative;
}
.slider li {
	list-style: none;
	position: absolute;
}
.slider img {
	margin: auto;
	height: 100%;
	width: 100%;
	vertical-align: top;
}
.slider input {
	display: none;
}
.slider label {
    background-color: #000;
    bottom: 10px;
    cursor: pointer;
    display: block;
    height: 10px;
    position: absolute;
    width: 10px;
    z-index: 10;
 }

.slider li:nth-child(1) label {
    left: 10px;
 }

.slider li:nth-child(2) label {
    left: 40px;
 }

.slider li:nth-child(3) label {
    left: 70px;
} 
.slider li:nth-child(4) label {
    left: 100px;
}
.slider img {
    opacity: 0;
    visibility: hidden;
 }

.slider li input:checked ~ img {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}