.parallax {
  /* The image used */
  /*background-image: url('img_parallax.jpg');*/

  /* Full height */
  height: 100%; 

  /* Create the parallax scrolling effect */
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.overflow-scroll::-webkit-scrollbar {
  display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.overflow-scroll {
-ms-overflow-style: none;  /* IE and Edge */
scrollbar-width: none;  /* Firefox */
}