While working on recent Drupal projects, I learned that Internet 10 and 11 (IE10-11) no longer support IE conditional comments. Conditional comments allow us to target specific versions or version ranges of IE to correct bugs or inconsitentices that normally are not present on other browsers. Typically for IE9 and below, we have been able to write conditional css by using something like this:
<!DOCTYPE html> <!--[if IE 8 ]> <html class="no-js ie8"> <![endif]--> <!--[if IE 9 ]> <html class="no-js ie9"> <![endif]-->
The code above allows us to add a css class to the html tag which only becomes available if the browser we are using is one of the ones above (IE 8 or 9). This is extremely helpful because with this class we can now write css styles that only apply to those versions of IE.
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Writing conditional code based on the IE version is never desired but it comes as a necessity to address bugs or correct style inconsistencies between IE and the rest of the browsers.
There is no question that IE10 and 11 are an improvement from previous versions of IE, but unfortunately there are times when they too need special attention. In order to conditionally target IE10 and 11 we can now use a special media query:
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
// IE10+ CSS here
}With the above media query in place you are now ready to conditionally target IE10 and 11. For IE 9 and below, we can continue to use the usual conditional comments.
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