Width of images

1. Making images to get out of the regular content area is tricky and is way out of scope of free support. If theme wouldn’t be responsive it would be much easier but now you have to get images out of the content area and still have to align to it to all mobile device screen sizes. It is doable but not an easy task.

2. To make featured images to work in Lightbox you should replace this code in content-single.php and content.php (first one is to make them work in single post view and second one to make it work in blog page)

<?php the_post_thumbnail( 'sparkling-featured', array( 'class' => 'single-featured' )); ?>
with

<?php
		if ( has_post_thumbnail()) {
		   $large_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large');
		   echo '<a href="' . $large_image_url[0] . '" title="' . the_title_attribute('echo=0') . '" >';
		   the_post_thumbnail( 'sparkling-featured', array( 'class' => 'single-featured' ));
		   echo '</a>';
		}
	?>

All this code does it adds link to full sized image, so Lightbox can pick it up.

Thanks man, worked like a charm! I’ll leave the image width as it is, not worth screwing shit up for something minor as that. Cheers!