feature: min/max-width/height status: use tags: gtie6 kind: css polyfillurls:
min-width, max-height, etc are supported everywhere as of IE7. The min-height fast hack has long been a reliable way of implementing min-height, but as many have sunsetted IE6 support, you likely don't need to worry about fallback anymore.
Use all you like without fallback; certainly do not use CSS expressions to mimic this behavior.