@media only screen and ( max-width: 768px ) {
	#demoGall .ngg-galleryoverview .ngg-gallery-thumbnail-box{ 
		width:33.3333% 
	}
}

@media only screen and ( max-width: 588px ) {
	#demoGall .ngg-galleryoverview .ngg-gallery-thumbnail-box{ 
		width: 50% 
	}
}

@media only screen and ( max-width: 408px ) {
	#demoGall .ngg-galleryoverview .ngg-gallery-thumbnail-box{ 
		width: 100% 
	}
}