simplebox.js is a lightweight lightbox plugin (603 bytes) that is easy to modify or extend to fit your needs. This plugin is intended to be a quick, responsive, efficient. simplebox.js is designed to have just one feature: lightboxing. It’s responsive out of the box and allows only a few crucial settings.
To install simplebox, you will have to include the following resources in your page. The JS files should be loaded in the order stipulated below. For the CSS file, you can either incorporate it with your site’s stylesheet, or load it externally through the link element in head.