There are some display issues in the jQuery documentation with Opera. On http://docs.jquery.com/Selectors for example, below each heading there is a huge gap to the list of functions/selectors.
>From a quick glance at the HTML it seems there are many instances of paragraph and line break tags between the table rows. http://validator.w3.org/check?uri=http%3A%2F%2Fdocs.jquery.com%2FSelectors might be an indication that something's not right ;) I don't know if this is the best place to post this, but just thought you guys would like to know :)