.app {
  background: linear-gradient(90deg,rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.25) 100%), url("../images/wall.png") !important;
  background-repeat: no-repeat !important;
  background-attachment: fixed !important;
  background-position: center !important;
  background-size: contain !important;
}
/*
.app {
  background: url("../images/wall.png") !important;
  background-repeat: no-repeat !important;
  background-attachment: fixed !important;
  background-position: 0% 0% !important;
  background-size: 100% 100% !important;
} */