How to hide all elements except a certain one?

Question

css

It is necessary to hide all blocks except for a certain one (to print the media print page)
I do:

*{
display:none;
}
#print{
display: block !important;
}

Nothing comes out, please help. I can't figure it out anymore.

Answer 1

Hide child body blocks by comma-separated listing instead of a general selector.

Answer 2

*:not(#print) {
    display:none;
}