old-styles.css

* {
  box-sizing: border-box;
}
body {
  margin: 0px;
  overflow: hidden;
}
.wrapper {
  height: 100vh;
  width: 100%;
  display: flex;
  overflow: hidden;
}

.hugh-vert, .becky-vert {
  position: absolute;
  z-index: 2;
  font-size: 3em;
  text-transform: uppercase;
  font-family: 'Helvetica', sans-serif;
  color: white;
  writing-mode: vertical-rl;
  text-orientation: upright;
  top: 0px;
  padding-top: 10px;
  height: 100vh;
  display: none;
}

.hugh-vert {
  right: 0px;
  z-index: 2;
}
.becky-vert {
  left: 0px;
  z-index: 2;
}

.hugh, .becky {
  display: flex;
  padding-top: 1em;
  flex-grow: 1;
  justify-content: center;
  font-size: 3em;
  text-transform: uppercase;
  font-family: 'Helvetica', sans-serif;
  color: white;
  background-size: cover;
  z-index: 1;
}

.hugh {
  background-image: url('https://github.com/HughAndBecky/Hughandbecky-us/blob/master/Hugh_Work.jpg?raw=true');
  background-position: top right;
  filter: grayscale(100%);
}

.becky {
  background-image: url('https://github.com/HughAndBecky/Hughandbecky-us/blob/master/Becky_Work.jpg?raw=true');
  background-position: top left;
  filter: grayscale(100%);
}

.becky:hover, .hugh:hover {
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
  filter: grayscale(0%);
}


.hugh:hover {
  right: 0;
  left: 55px;
}

.becky:hover {
  right: 55px;
  left: 0;
}


.becky:hover > span, .hugh:hover > span {
  writing-mode: vertical-rl;
  text-orientation: upright;
  position: absolute;
}

.becky:hover > span {
  left: 16px;
  top: 16px;
}

.hugh:hover > span {
  right: 16px;
  top: 16px;
}


.hugh:hover ~ .becky-vert, .becky:hover ~ .hugh-vert {

  background: rgba(0,0,0,0.5);
  display: block;
}