CSS Challenge

Thanks @faramarz a lot for the try. I cannot say that it doesn't work; it definitely does. The thing is, this solution cannot be accepted as generic. I couldn't explain all the conditions in the twitter post; my mistake. But it was rather a sarcastic post. If someone would want to try for a generic solution: 1) Horizontal centering isn't necessary. So let the DIV width occupy all the available width. 2) The height cannot be fixed. The content can vary.

I doubt if there exist any solution to this. My point is, if we are talking about Clones, Moon, Rocket Science and HTML5, a simple thing like this is not possible even today. If CSS can offer margin: 0 auto; why can't it offer something to align elements vertically center? May be, margin: auto 0;???

@faramarz, once again, thank you very much for spending time on this.

Done! Works in every single browser.

  div {
  background: red;
  width: 250px;
  height: 250px;
  top: 50%;
  left: 50%;
  position: absolute;
  margin: -125px 0 0 -125px; /* Width of Element / 2 = Negative Left Margin
				Height of Element / 2 = Negative Top Margin */
 }

Live demo http://www.faramarzhashemi.com/valign.html