.split {
  width: 50%;
  height: 100%;
  position: relative;
}

.left {
  background: url("../img/colorful-laptop-wallpaper-and-phone.jpg") no-repeat
    center center;
  background-size: cover;
}

.right {
  background-color: #dee2e6;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}