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$base-path:'../images/';
$base-attr:'data-';
@function url($src, $path:''){
@return unquote('url('+$base-path + $path+ $src +')');
}
@function url2($src, $path:''){
@return unquote('url('+ $base-path + $path+ $src +')');
}
@function attr($arg1, $arg2:''){
@return unquote('attr('+$base-attr + $arg1 + $arg2 +')');
}
div {
background: url('image.png');
background: url('image.png','img/');
background: url2('image.png','img/');
&:after {
content: attr(value);
content: attr(value, -extra);
content: url('icon.png');
content: url('icon.png','gfx/');
content: url2('icon.png','gfx/');
}
}
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