html, body {
  padding: 0;
  margin: 0;
  font-size: 1em;
}

body {
  overflow-x: hidden;
  width: 100%;
}

a {
  color: firebrick;
  font-weight: 500;
}

.info {
  display: none;
}



#curtainleft {
  background-image: url('curtain.png');
  background-size:100% 100%;
  position: absolute;
  display: block;
  height:100%;
  transition: 10.0s;
  animation-timing-function: ease-out;
  background-position: center;
}

#curtainright {
  background-image: url('curtain.png');
  background-size:100% 100%;
  position: absolute;
  display: block;
  height:100%;
  transition: 10.0s;
  animation-timing-function: ease-out;
  background-position: center;
}

#curtainleft {
  background-size:200% 100%;
  width:50%;
  left:0;
  top:0;
  box-shadow: 10px 0 20px black;
}

#curtainright {
  background-size:200% 100%;
  width:50%;
  right:0;
  top:0;
  box-shadow: -10px 0 20px black;
}