in reply to Adding details with summary html tags

I was wondering if <details> with <summary> could be added as acceptable html here in PerlMonks. Those tags could be used when code or data examples are more than 10 or so lines. <readmore> is great for keeping long batches of code or data from the main list of posts, however, long batches of code might do well if kept in a <details> tag where the code or data can be hidden to keep page lengths from being over long upon initial load. So what do you all think?

I think, if you can't handle the existing "tags" why would "more tags" be of benefit?

Also, I think it's fairly pointless to add more tags when existing tags could be merely styled