body {
  background: #000;
  height: 100vh;
  width: 100%;
  padding: 0;
  margin: 0;
}

.section {
  height: 100vh;
  width: 100%;
}

.before {
  background: url('https://cdn.discordapp.com/attachments/1057997798148153357/1060647582994530304/steam-old.jpg') no-repeat center center;
  background-size: contain;
}

.section-wrapper {
  position: relative;
  height: 100%;
  width: 100%;
}

.before-wrapper {
  position: relative;
  overflow: hidden;
  display: block;
  height: 100%;
  width: auto;
}

.before-wrapper:before {
  display: block;
  height: 100%;
  width: 100%;
  content: '';
}

.after-wrapper {
  -webkit-transform: translateX(50%);
  transform: translateX(50%);
  position: absolute;
  overflow: hidden;
  bottom: 0;
  right: 0;
  left: 0;
  top: 0;
}

.after {
  background: url('https://cdn.discordapp.com/attachments/1057997798148153357/1060647582692552745/13_Pro_-_51.jpg') no-repeat center center;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  background-size: contain;
  position: relative;
  display: block;
  height: 100%;
  width: auto;
}