[whatwg] Registration points for elements

[Mikko Rantalainen]

Ian Hickson, 2013-01-08 18:23 (Europe/Helsinki):
> You can do this with anything in HTML, using absolute positioning: set 
> just one of the coordinates in each direction, and leave the other on 
> 'auto'. As in:
> 
>    div { position: absolute: bottom: 10em; right: 10em; width: auto;
>          height: auto; left; auto; top: auto; margin: 0; }

That will work if you only want to use one of the element's corners as
the anchored point. However, CSS does not provide a way to position the
center of the element and use "width: auto" and "height: auto". Even
more advanced would be a feature to define anchored point to be some
percentage of the width and height and then absolutely position that.
However, that feature is missing, too.

-- 
Mikko