.Class {
  z-index: 0;
  position: initial;
  left: 0
}
.background {
  background-color: #010101
}
.backgroundblack {
  background-color: #000
}
.img-fluid {
  overflow: hidden;
  display: block;
  background-image: url("https://images.unsplash.com/photo-1614332287897-cdc485fa562d?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMzIzMzB8MHwxfHNlYXJjaHwxfHxjb21pbmclMjBzb29ufGVufDB8fHx8MTY4OTk2ODQ1MHww&ixlib=rb-4.0.3&q=85&w=1920")
}
@media (max-width:640px) {
  .Class {
    position: absolute;
    left: 100px
  }
}