.slider {
  width: 100%;
  height: 600px;
  margin: 20px auto;
  position: relative;
}

.slide1, .slide2, .slide3, .slide4, .slide5 {
  position: absolute;
  width: 100%;
  height: 100%;
}

.slide1 {
  background: url(http://media.dunkedcdn.com/assets/prod/40946/580x0-9_cropped_1371566801_p17tbs0rrjqdt1u4dnk94fe4b63.jpg)no-repeat center;
  background-size: cover;
  animation: fade 8s infinite;
  -webkit-animation: fade 8s infinite;
}

.slide2 {
  background: url(http://media.dunkedcdn.com/assets/prod/40946/580x0-9_cropped_1371565525_p17tbqpu0d69c21hetd77dh483.jpeg)no-repeat center;
  background-size: cover;
  animation: fade2 8s infinite;
  -webkit-animation: fade2 8s infinite;
}

.slide3 {
  background: url(http://media.dunkedcdn.com/assets/prod/40946/580x0-9_cropped_1371564896_p17tbq6n86jdo3ishhta3fv1i3.jpg)no-repeat center;
  background-size: cover;
  animation: fade3 8s infinite;
  -webkit-animation: fade3 8s infinite;
}