#confooLogo {
  position: fixed;
  left:   10px;
  bottom: 10px;

  z-index: 2;
}

.demo {
  width: 364px;
  margin: 0 auto;
}

.overlay {
  background-color: black;
  background-color: rgba(0, 0, 0, 0.75);
  color: rgb(255, 255 , 255);
  mix-blend-mode: multiply;
}

.slide {
  background-size: cover;
}