.banner {
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.slider {
  width: 100%;
  height: 100vh;
  position: absolute;
  top: 0;
}

#slideBgImg {
  width: 100%;
  height: 100%;
}

.overlay {
  width: 100%;
  height: 100vh;
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
  position: absolute;
  top: 0;
}