Add examples/css in the csslint task.

[XhmikosR]

Fixes #12457.

[XhmikosR]

BTW most issues are because of the order of properties. Maybe csscomb should be used for these css files too?

[XhmikosR]

@cvrebert: see here for the csscomb change. I can make a PR after this is merged if you want.

[cvrebert]

I think the position of the filter might be intentional.

[cvrebert]

/to @mdo for review

[XhmikosR]

Not sure about that, I generally place it after all the other normal properties like it's in the patch.

Even with csscomb and the current config used it's placed there.

[mdo]

The placement of filter after background-image is intended.

[XhmikosR]

@mdo: using the current csscomb config from the repo you can see the change.

https://github.com/XhmikosR/bootstrap/compare/examples-csscomb#diff-945816d86d91c9ad1cb91a042b7c6b96R42

[mdo]

I see that line being unaffected. I'm confused, why was filter brought up in the first place? This diff looks fine to me btw.

[XhmikosR]

@mdo: @cvrebert brought it up because of this

The other link above proves that this is how it would be if csscomb was used too.

[mdo]

Ah, well, that change makes sense, too. Diff looks good.

[XhmikosR]

So, you could merge it I guess :D

[mdo]

<3