examples of selector= attr of <rendition> wrong?

[sydb]

The value of @selector is “a selector or series of selectors”. If @scheme is (or is assumed to be) "CSS", how are the distinct selectors of a series separated from one another? Some examples show what look like a series of whitespace-separated element types, but in CSS separating two element types by a space means “descendant of”. E.g.:

<rendition selector="emph hi name title">font-style: italic;</rendition>

In CSS this means something akin to the XPath emph//hi//name//title. I bet the example wants to say “<emph> or <hi> or <name> or <title>”. Thus I do not think we can use whitespace as a way to separate a series of selectors. But in CSS this would be indicated with “emph, hi, name, title”, no?
There are 5 cases of @selector that use (only) whitespace to separate element types. It is not clear to me just glancing at them which ones mean “descendant” and which mean “or” (and thus should be changed to comma).

(BTW, thanks to @amclark42 for helping w/ this.)

[martindholmes]

This would be helpful:

Multiple selectors: Again, these are not separate selectors; the idea is that you can put multiple selectors on the same CSS rule, separated by commas, to apply a single set of declarations to all the elements selected by those selectors.

https://developer.mozilla.org/en-US/docs/Learn/CSS/Introduction_to_CSS/Selectors

The spec calls them "groups of selectors":

https://www.w3.org/TR/2018/CR-selectors-3-20180130/#grouping

[sydb]

Here are the 5 cases.

From <tagUsage> tagdoc, should use a comma:

<rendition xml:id="IT" scheme="css" selector="emph hi">font-style: italic;</rendition>

Next 2 are from HD, should remain space:

<rendition scheme="css" selector="front p">  
    font-size: 110%;
    margin-top: 0.5em;
    margin-bottom: 0.5em;
  </rendition>

<rendition scheme="css" selector="body p">  
    font-size: 100%;
    margin-top: 0;
    margin-bottom: 0;
  </rendition>

From <tagsDecl> tagdoc, should use commas:

<rendition xml:id="rend-it" scheme="css" selector="emph hi name title">font-style: italic;</rendition>

From ST, should use a comma:

<rendition xml:id="it" scheme="css" selector="foreign hi"> font-style: italic; </rendition>

[peterstadler]

subgroup agrees that this is a no-brainer and thanks @sydb for his exemplary documentation

[martinascholger]

For documentation purposes: it was foreign, hi in <tagUsage> and emph, hi in ST

[martinascholger]

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