.hero-background {
  position: absolute;
  top: 0rem;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("../assets/background/stfx_bg_9.jpg") no-repeat center
    center/cover;
  z-index: -1;
  opacity: 0.5;
  background-attachment: fixed;
}

.flip-card {
  background-color: transparent;
  perspective: 1000px;
  height: 585px;
  min-width: 250px;
}