.polarslide {
    position: relative;
}

.polarslide img {
  margin: auto;
}

/*
 * Caption
 */

.polarslide .caption {
    position: absolute;
    bottom: 0;

    /* it must not be clickable */
    pointer-events: none;

    width: 100%;
    background-color: rgba(128, 128, 128, 0.61);
    color: white;

    font-family: Sans;
}

.polarslide .caption span {
    margin-left: 1.61rem;
    display: block;
    padding: 0.35rem 0;
    /*text-align: center;*/
}

/* fade in on hover */
.polarslide .caption {
    opacity: 0;

    transition: opacity 0.3s ease;
}

.polarslide:hover .caption {
    opacity: 1;
}

/*
 * Hotspots
 */
.polarslide .hotspot-box {
  position: absolute;
}

.polarslide .hotspot {
  width: 50px;
  height: 50px;
  border-radius: 25px;
  background: #3498db;
  color: #fff;
  font-size: 25px;
  line-height: 50px;
  text-align: center;
  font-weight: 500;
  box-shadow: 0px 0px 7px 2px #fff;
}

.polarslide .hotspot:hover {
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  box-shadow: 0px 0px 12px 3px #fff;
}