1. Go to this page and download the library: Download inc2734/wp-pure-css-gallery library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
inc2734 / wp-pure-css-gallery example snippets
new Inc2734\WP_Pure_CSS_Gallery\Bootstrap();
/**
* @param ids Attachment IDs
* @param link
* @var file Lightbox
* @var none No link
* @var (blank) Attachment page
* @param size Thubmnail Size
* @param columns Column size
* @param order ASC or DESC
* @param orderby
*/
[gallery ids="1,2,3" columns="3"]