Clearfix to block group not working when applying Pocket Grid in CSS

[mdmoura]

Hello

I have been using Pocket Grid on my less code (http://codepen.io/mdmoura/pen/hapox).

However to make this work correctly I need to "manually" add a clear to block-group.

If I add block group to the element class then it works.

Any idea why?

Thank You, Miguel

[olegatro]

Class .items must have clearfix. I don't now why less not exntended :before and :after.

P.S. I suggest you reformat code, because he is not very beautiful.