.pd-lightbox-img{
  display:block;
  max-width:100%;
  max-height:calc(100vh - 160px);
  margin:0 auto;
  object-fit:contain;
}
.pd-nav{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  background:rgba(0,0,0,.4);
  color:#fff;
  border:none;
  padding:.6rem .8rem;
  border-radius:999px;
  cursor:pointer;
}
.pd-prev{ left:14px; }
.pd-next{ right:14px; }
.pd-close{
  position:absolute; right:10px; top:10px;
  border-radius:999px;
}