This works with newer LESS versions:
.box-shadow(2px 2px 3px rgba(0,0,0,.4), 0px 0px 5px rgba(0,0,0,.8););
// this semicolon is important! ^
And this uglier version works even with older LESS versions:
.box-shadow(~"2px 2px 3px rgba(0,0,0,.4), 0px 0px 5px rgba(0,0,0,.8)");
Update:
LESS evolved, so this answer was updated and is now correct again. Thanks Micha? Rybak
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