I have this mixin to handle a simple CSS3 linear gradient:
@mixin linear-gradient($from, $to, $dir: bottom, $dir-webkit: top, $ie-filters: false) {
background-color: $to;
background-image: -webkit-linear-gradient($dir-webkit, $from, $to);
background-image: linear-gradient(to $dir, $from, $to);
@if $ie-filters == true and $old-ie {
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($from)}', endColorstr='#{ie-hex-str($to)}');
}
}
$dir
is short for 'direction'.
If I need to make $ie-filters
'true' and I don't need to change the $dir
/ $dir-webkit
default values I still need to redeclare them which obviously isn't very DRY and optimal, so I'd have to do this:
@include linear-gradient(#7a7a7a, #1a1a1a, bottom, top, true);
When I just want to do this:
@include linear-gradient(#7a7a7a, #1a1a1a, true);
How do I skip over arguments in this way when calling a mixin?
PS if you're wondering about the $dir-webkit
argument it's for Webkit as it still doesn't handle the new gradient syntax (see: http://generatedcontent.org/post/37949105556/updateyourcss3 -> New gradient syntax), the direction needs to be the opposite of the standard syntax.
Starting from SASS 3.1 you can pass named arguments to do that:
@include linear-gradient($from: #7a7a7a, $to: #1a1a1a, $ie-filters: true);
The rest will be default.