.fullwdesk {
    position: relative;
}

.fullwdesk img {
    position: absolute;
    top: 0;
    left: calc(50%);
    transform: translatex(-50%);
    object-fit: cover;
    height: 100%;
    width: 100%;
} 

.offset-image {
  position: relative;
  width: 100%;
}
.offset-image img {
  object-fit: cover;
  width: 100%;
  height: 100%;
}