.flexbox-slideshow {
  position: relative;
  overflow: hidden;
}
.slideshow {
  padding: 0;
  margin: 0;
  list-style: none;
}
.slideshow li:not(.placeholder) {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
}
.slideshow li img {
  width: 100%;
  max-width: 100%;
  display: block;
  opacity: 0;
}
.slideshow li.active {
  z-index: 2;
}
.slideshow li.active img {
  opacity: 1;
}

.slideshow li .caption-container {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  flex-direction: column;
}
.slideshow li .caption {
  background: rgba(0, 0, 0, 0.5);
  color: #f2f2f2;
  padding: 10px 20px;
  margin-left: -100%;
}
.slideshow li .caption.caption-title {
  margin-bottom: 10px;
  transition: all .2s ease;
}
.slideshow li .caption.caption-title > * {
  margin: 0;
}
.slideshow li.active .caption {
  margin-left: 0;
}

.dotnav {
  position: absolute;
  list-style: none;
  padding: 20px;
  margin: 0;
  top: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: wrap;
  height: 100%;
}
.dotnav li span {
  border-radius: 50%;
  display: block;
  height: 20px;
  width: 20px;
  margin-right: 20px;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  box-shadow: 0px 1px 6px #000;
}
.dotnav li.active span {
  background: rgba(255, 255, 255, 0.5);
  cursor: default;
}
.dotnav li:last-child span {
  margin-right: 0;
}

@media screen and (max-width: 599px) {
  body {
    background: black;
  }
  h1 {
    margin-bottom: 0;
  }
  .container {
    margin-top: 20px;
    padding: 10px;
  }
  .slideshow li .caption-container {
    justify-content: flex-start;
  }
  .slideshow li .caption {
    font-size: 3vw;
    width: 100%;
    margin-left: 0;
    margin-top: -100%;
    text-align: center;
  }
  .slideshow li .caption.caption-author {
    display: none;
  }
  .slideshow li.active .caption {
    margin-top: 0%;
  }
  .dotnav {
    padding: 3vw;
  }
  .dotnav li span {
    height: 3.5vw;
    width: 3.5vw;
    margin-right: 10px;
  }
}