animation/src/index.css

@import url('https://fonts.googleapis.com/css?family=Roboto');

html {
  outline: solid 2px blue;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  background-color: black;
}
body {
  margin: 0;
  background-color: #252423;
  color: #F6F4F2;
  font-family: Roboto;
  position: absolute;
  width: 1920px;
  height: 1080px;
  zoom: 50%;
}

scene, .scene {
  display: inline-block;
  position: absolute;
  width: 1920px;
  height: 1080px;
  xoutline: solid 10px #ff8800aa;
  xoutline: solid 1000px black;
}

sprite, .sprite {
  display: inline-block;
}
centerer {
  display: inline-block;
  transform: translate(-50%, -50%);
}
mover, scaler {
  display: inline-block;
}
mover {
  display: inline-block;
  position: absolute;
}