.slb-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  color: white;
  text-align: center;
  padding: 2rem;
}

.slb-overlay img {
  max-width: 90vw;
  max-height: 70vh;
}


.slb-caption {
  margin-top: 1rem;
  white-space: pre-wrap;
  /*width: 60vw;*/
  text-align: center;
  /*-left: auto;*/
  /*margin-right: auto;*/
}


/*
.slb-caption {
  margin-top: 1rem;
  white-space: pre-wrap;
  width: 60vw;
  max-width: 90vw;
  text-align: center;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
*/


.slb-nav {
  margin-top: 1rem;
}

.slb-nav button {
  margin: 0 10px;
  font-size: 1.2rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
}