.pana-accordion {
  width: 100%;
  height: 300px;
  margin: 20px auto;
  position: relative;
  overflow: hidden
}

.pana-accordion .pana-accordion-wrap {
  margin-left: -1px;
  position: relative;
  width: 300%
}

.pana-accordion .pana-accordion-wrap .pana-accordion-item {
  background: #f0eee2;
  border-left: 1px solid #fff;
  width: 100px;
  height: 300px;
  overflow: hidden;
  float: left;
  position: absolute;
  left: 0;
  top: 0;
}

.pana-accordion .pana-accordion-wrap .pana-accordion-item .pana-accordion-mask {
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  position: absolute;
  z-index: 10;
}

.pana-accordion .pana-accordion-wrap .pana-accordion-item.active .pana-accordion-mask { display: none }