.kv {
  background-image: url("http://31286633.s61i.faiusr.com/2/AD0I6cr1DhACGAAg7L7JpAYojOGO4wEwgA84qAQ.jpg");
}

.body-background{
  position: fixed !important;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: -2;
  position: relative;
}
.body-background img{
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  opacity: 0.5;

}