.slider-holder *, .slider-holder *:before, .slider-holder *:after {
  box-sizing: border-box;
}

.slider-holder {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0;
  position: relative;
}

.slider-content {
  display: flex;
  flex-flow: row wrap;
  height: 100%;
}

.info-line {
  position: absolute;
  top: calc(33.3334% + 1px);
  width: calc(33.3334% - 2px);
  height: calc(33.3334% - 1px);
  background: rgba(124, 189, 218, 0.9);
  color: #fff;
  text-transform: uppercase;
  font-size: 150%;
  font-weight: bold;
}

.info-line:hover {
  background: rgba(0, 0, 0, 0.7);
}

.info-line a {
  text-decoration: none;
  color: #fff;
  display: block;
  width: 100%;
  height: 100%;
  padding: 30px 20px;
}

.info-line a:hover, .info-line a:active, .info-line a:visited {
  color: #fff;
}

.slider-nav {
  position: absolute;
  bottom: 30px;
  right: 30px;
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.slider-nav li {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: #999;
  opacity: 0.7;
  border-radius: 10px;
  margin: 0 0 0 10px;
  padding: 0;
  cursor: pointer;
}

.slider-nav li:hover {
  background: #ccc;
  opacity: 0.9;
}

.slider-nav li.slider-nav-active {
  opacity: 1;
  background: #fff;
}

.slider-arrow-back, .slider-arrow-forward {
  float: left;
  display: inline-block;
  width: 20px;
  height: 40px;
  position: absolute;
  top: calc(50% - 15px);
  cursor: pointer;
}

.slider-arrow-back:hover, .slider-arrow-forward:hover {
  opacity: 0.7;
}

.slider-arrow-back:before, .slider-arrow-forward:after {
  display: block;
  width: 100%;
  height: 100%;
  font-size: 40px;
  line-height: 40px;
  color: #ccc;
  text-align: center;
  content: '\2303';
}

.slider-arrow-back:before {
  transform: rotate(-90deg);
}

.slider-arrow-forward:after {
  transform: rotate(90deg);
}

.slider-arrow-back {
  left: -20px;
}

.slider-arrow-forward {
  right: -18px;
}

.slider-feed {
  display: none;
}

.cube {
  width: 16.667%;
  height: 33.333%;
  border-top: 1px solid rgba(255,255,255,0);
  border-right: 1px solid rgba(255,255,255,0);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.inner-a {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.inner-b {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

@media (max-width: 1023px) {
  .slider-arrow-back, .slider-arrow-forward {
    display: none;
  }
}