Writing browser specific hack in Less (for <IE9)

Question

I want to do something like this (Source - CSS Tricks Article):

#veinte { color/*\\**/: blue\\9; }

in

Answer 1

You can try this one: background-position:~"-150px 0px\9" width:~"300px\9";

example:

.test{
    width:~"300px\9";
}