How about negative hacks?

[atk]

One of my favourite hacks for IE8 is a negative hack that will hide the selection from IE8 and older:

selector, #not#ie8 { /* multiple ids, while validly selecting no element, will lead IE8 and older to ignore the complete selection */ }

[jeffclayton]

The multiple id hack is great yes, check the 'everything but internet explorer <= 8' section on bh for others like that

[atk]

Already seen it. I like the multiple ID hack better, because it is so verbose.

[jeffclayton]

They think the opposite way here, less complicated is better

[atk]

We still could document it for those who like to be verbose.

[jeffclayton]

I love to find all ways to do things personally, not just a select few, - especially if one version becomes unsupported in a newer browser, so I am right there with you on that.