/* Should fill 80% of website height */
.h-80 {
  height: 720px;
}
@media (max-width: 992px) {
  .h-80 { /* Bootstrap lg breakpoint */
    height: 680px;
  }
}
@media (max-width: 768px) {
  .h-80 { /* Bootstrap md breakpoint */
    height: 600px;
  }
}
@media (max-width: 576px) {
  .h-80 { /* Bootstrap sm breakpoint */
    height: 500px;
  }
}