FancyBox for WordPress turns the images you already have into a lightbox gallery. Activate it and every image that links to a full-size file opens in an overlay instead of loading a new page — in posts, pages, widgets and the block editor’s gallery blocks, with no shortcodes and nothing to add to your content. If the defaults suit you, there is nothing to configure. What you get out of the box Click any linked image to open it in an overlay, with the rest of the page dimmed behind it Arrow keys, on-screen arrows, swipe on touch devices, and Escape to close Zoom, slideshow, thumbnail stri...
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