Replying to: Adrian Roselli
I don’t use LESS or SASS, and I have managed to pull it off. I don’t know the scale of the site nor the volume of CSS, but if the CSS you use for the IE7/8 layout matches one of your media queries, just copy-paste that into your IE-only CSS file. I know it’s a bit manual, but you can lean on version control, server-side includes, or other techniques to mitigate that.
You can prevent old-IE from downloading all the other CSS just by wrapping all of it in a query selector (media: screen is a good start and doesn’t block any print styles you create since I am sure you would have those (...)