/*
 * IW Lazy Image — fade-in transition khi ảnh thật load xong.
 * Markup: <img class="lazy-img" src="LOADING.gif" data-src="REAL"> + JS swap.
 */

.lazy-img {
	opacity: 0;
	transition: opacity 0.4s ease-in-out;
}
.lazy-img.loaded {
	opacity: 1;
}