"Andy Burns"  wrote

| It's a newish attribute but  avoids using
| js for that.

 That's interesting. I didn't know about it. But it is *very* new.
Chrome 76, according to w3c. So not likely to be used for
some time. Also, there's still the problem of pages trying to
guess your screen size and then load one of several size
options based on that. That's also completely broken without
script. Typically, if there's any default SRC at all it's tiny.

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