http://simonpadbury.github.io/Really-Simple-Lightbox/

This is a really simple lightbox jquery plugin, intended for static websites.

• jQuery library required (in index.html this is downloaded from Google Hosted Libraries).
• Plugin script is 4KB minified.
• Accompanying stylesheet is 1KB minified.
• Also required: Font Awesome (or your preferred icon font) for dismiss, group previous, group next and lightbox loading icons.
• Simple to use (simplest example: just add data-lightbox="lightbox" to an <a> hyperlink, and link to the large image to be shown in the lightbox).
• Demo and full instructions included in index.html.
• ICS licence (Open Source).