Do the various environments e.g. theorem, lemma, question result in any sort of identifiable information in the HTML markup. For instance, a

might result in the HTML element of interest carrying a class='lemma'.

I've searched a little through random articles and can't find any examples of this.

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## HTML markup for envirionments

Do the various environments e.g. theorem, lemma, question result in any sort of identifiable information in the HTML markup. For instance, a

[lemma]might result in the HTML element of interest carrying a class='lemma'.

I've searched a little through random articles and can't find any examples of this.