.simple-slider {
  min-height: 350px;
  max-height: 500px;
  margin-top: 50px;
  border: 10px solid #333;
  position: relative;
  background-size: cover;
}

.simple-slider .slide { padding: 10px; }

.simple-slider [data-slide] { display: none; }

.simple-slider [data-slide='1'] { display: block; }

.simple-slider .back,
.simple-slider .next {
  position: absolute;
  bottom: 10px;
  background-color: #fff;
  padding: 10px 15px;
  cursor: pointer;
  color: #333;
  border-radius: 0px;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
}

.simple-slider .back:hover,
.simple-slider .next:hover {
  text-decoration: none;
  color: #fff;
  background-color: #333;
  cursor: pointer;
}

.simple-slider .next { right: 10px; }

.simple-slider .back { right: 60px; }