"content" property is always enclosed in ""

[bitplanets]

for example:

content   : 'attr(data-label)',

renders as

content: "attr(data-label)";

instead of

content: attr(data-label);

Is not easy to fix this issue...

[chenglou]

Maybe you're aware but the code's added here by #19

@crm416

[bitplanets]

I'm not but this is still an issue..

[jaredly]

Maybe something like content: {attr: 'data-label'} could disambiguate?