Re: [xml-dev] CSS selectors are syntactic sugar for XPath expressions

[Roger L Costello <costello@mitre.org>]

Alex Johannesen wrote:
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if you have control over how the XML is written, it's easy;

   <longitude class="coord">...</longitude>
   <latitude class="coord">...</latitude>

Select it with "person.coord", and off you go. The CSS styling interpretation isn't locked to a "each selected bunch are treated as individual items, and then iterated over". It's up to you in how you work with these selectors and compound selections. Often they *are* treated as a group selection, often for performance reasons.
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That sounds promising!

Would you (Alex or anyone) give an example of a CSS rule that selects multiple items and styles the items as a group, please? I am trying to think of something analogous to my latitude/longitude problem ... possibly something like this pseudo-CSS-rule:

h1, h2 { if there exists an h2 element, then italicize the h1 element, otherwise boldface the h1 element; }

In that pseudo-CSS-rule the two selected elements - h1 and h2 - are intertwined and operated on together, just like my latitude/longitude problem.

Is that type of thing possible in CSS?

/Roger