html, body {
  height: 100%; margin: 0;
  overflow: hidden;
  background: #111;
  font-family: sans-serif;
  color: #eee;
}

#roster {
  position: relative;
  width: 100%; height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.char {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
  text-align: center;
  pointer-events: none;
}
.char img {
  width: 30vmin;
  display: block;
  margin: 0 auto 1rem;
  filter: grayscale(100%) brightness(0.7);
  transition: filter 0.5s ease;
}

.char.active {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  z-index: 2;
}
.char.active img {
  filter: none;
}

.char.left, .char.right {
  opacity: 0.4;
  z-index: 1;
}
.char.left {
  transform: translate(-150%, -50%) scale(0.8);
}
.char.right {
  transform: translate(50%, -50%) scale(0.8);
}