.onyx-fade-slider {
  width: 100%;            /* Take full width of container */
  max-width: 300px;       /* Don’t exceed 300px width */
  aspect-ratio: 1 / 2;    /* Keeps 300x600 ratio */
  position: relative;
  overflow: hidden;
}

.onyx-fade-slider .onyx-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.onyx-fade-slider .onyx-slide.active {
  opacity: 1;
  z-index: 1;
}

.onyx-fade-slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;  /* Ensures images don’t stretch */
}