/* SUBTITLE */
.subtitle {
  user-select: none;
  position: fixed;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 80px;
  background: linear-gradient(to right, transparent, 15%, rgba(100, 100, 100, 0.5), 85%, transparent);
  opacity: 0;
  text-align: center;
  text-shadow: 2px 2px 2px black;
  line-height: 30px;
  font-size: 20px;
  color: white;
  text-shadow: 2px 1px 2px black;
  border-top: 1px solid black;
  border-bottom: 1px solid black;
  border-image: linear-gradient(to right, transparent, 20%, rgba(0, 0, 0, 1), 80%, transparent) 1;

  /* Add display: flex and justify-content: center to center the text vertically */
  display: flex;
  justify-content: center;
  align-items: center;

  /* fade animation */
  transition: opacity 0.25s ease-in-out;

}
.subtitle.show {
  opacity: 1;
}