body {
  background: black;
}

#topContainer {
  background-color: transparent;
}

#nextprev {
  position: fixed;
  bottom: 0.5%;
  right: 0;
  list-style-type: none;
  margin: 0;
  padding: 0.5em 0;
  z-index: 2;
}

#nextprev ul {
  margin: 0.2em;
  padding: 0;
}

#nextprev li {
  display: inline;
  margin: 0 0.4em;
  font-size: 1.5em;
}

#nextprevback {
  padding: 0 1em;
}

#nextprevforward {
  padding: 0 1em;
}

.nextprevconceal {
  visibility: hidden;
}

/* Split the screen in half */
.split {
  opacity: 0;
  height: 100%;
  width: 50%;
  position: fixed;
  z-index: 1;
  top: 0;
  overflow-x: hidden;
}

/* Control the left side */
.left {
  left: 0;
}

/* Control the right side */
.right {
  right: 0;
}