leanModal – A Micro jQuery Modal Plugin
leanModal is a lightweight jQuery plugin for displaying modal boxes with minimum effort.
The plugin doesn't use any images and a very good solution for for displaying anything except image galleries as there is no built-in support for that. But that's ok considering it only weights 780 bytes (when minified).
The width and height of the modal box is flexible and adjusts itself according to the content.
Multiple instances can be used on the same page and there are almost no settings or complicated usage instructions which is perfect for most cases.