Media Queries for old IE

ie_mediaquery.css

/* IMPORTANT: X-UA-Compatible needs to be "IE=7,IE=9,IE=edge"
** This doesn't always work in the HTML, so needs set via the server headers
** IE7 and less will apply whatever is in the media queries. (The actual mq statement is ignored due to the \9)
** IE8, due to the header code, will act like IE7 and therefore see point above
** IE9+ will use the media queries like a proper browser
**
** Desktop version: IE8 and below
** Responsive version: IE9+, modern browsers
*/ 

@media screen\9, screen and (min-width: 40em) {
  /* Media queries here */
}