This style will set a max height for posts, especially useful for mobile phone.

Content that exceeds max height will get hidden, to view the whole content you can hit the time link (below OP's name).

Hidden Content doesn't have special mark, but there are several ways to tell if content gets hidden.

* The post is exactly with max height (You may like to set it longer than or exactly one screen according to the resolution of your phone).
* The post dosen't show tags, as most people put their tags at the bottom.
* The post has link but doesn't show abstract content at the bottom.
* ...