.ad-roller{
  position:relative;
  width:100%;
  max-width:520px;     /* 필요하면 제거 */
  margin:16px auto;
  border-radius:14px;
  overflow:hidden;
}

.ad-roller__slide{
  position:absolute;
  inset:0;
  opacity:0;
  transition:opacity .35s ease;
  display:block;
}

.ad-roller__slide[aria-current="true"]{
  opacity:1;
  position:relative;
}

.ad-roller img{
  width:100%;
  height:auto;
  display:block;
}