I believe that I saw how the encoding was configured as follows:
div
box-shadow:
0 0 0 black,
1 0 0 black,
0 0 1 black
or try if the one above does not work
div
box-shadow: 0 0 0 black,
1 0 0 black,
0 0 1 black
Hope this helps you.
Also works in the context of media queries. (real world example for sprites with retina support). Notice the (somewhat strange) indentation of the second background image.
.sprite
background-image url('/assets/static/sprite.png')
background-repeat no-repeat
background-size 960px 480px;
@media only screen and (-webkit-min-device-pixel-ratio 1.3),
only screen and (-o-min-device-pixel-ratio 13/10),
only screen and (min--moz-device-pixel-ratio 1.3),
only screen and (min-device-pixel-ratio 1.3),
only screen and (min-resolution 120dpi)
background-image url('/assets/static/sprite_x2.png')
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