User blog comment:DaNASCAT/Technical Update: December 11, 2012/@comment-3441771-20121212034223/@comment-3441771-20121214012314

@CzeckOut: Ah! Yes, well... you see there are two reasons why I didn't suggest an image system for the opacity: 1) It's not as universally accessible as CSS. 2) It loads slower, thus I don't like the system, therefore won't promote it. Like Mathmagician said, I happened to know that one can color opacity beforehand... For example,  pops up behind lightboxes to, obviously, draw one's attention to the said image container. This "blackout" can be white colored or dark colored depending on theme. ;)

@Mathmagician: Yeah. That is exactly why I chose ; it has no children. :) However, I had completely forgotten about . This isn't supported by IE though, or is it?

@TK-999: Two reasons: I was showing off that I knew this stuff and 2) ironically I stuffed up; I was one browser edition out because I forgot that IE 9 supports . I'm not 100% sure why I left IE7 there &mdash; certainly it is ambiguous with me linking to Help:supported browsers &mdash; but if you can support a browser still why not? Actually, to fight that myself: if this was a good thing, then shouldn't I have left the code with   etc. as well? xD