# Lightbox

Lightbox flipbook displays flipbook thumbnail on the page and opens the flipbook in a fullscreen overlay when the thumbnail is clicked. There are other options to open the lightbox flipbook, like using a CSS class or using hash navigation (deep linking). Thumbnail can be hidden if the flipbook should be opened from a button or text link.

## **CSS class**

Any element on the page containing flipbook shortcode that has this CSS class will trigger the lightbox.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://real3dflipbook.gitbook.io/wp-lite/customizing-flipbooks/lightbox.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.