Utility classes with BEM

[EddyVinck]

I just started reading about BEM and I quite like the idea. I do have a question though:

Where does BEM stand on utility classes?

At work we like to use classes like .margin-bottom and .margin-bottom-large but I can't find anything about this on the website. The reason we use those kind of classes is because a lot of the margins (in this case) will be the same for a lot of elements.

Thanks.

[Ygohel18]

.margin__bottom
.margin__bottom--large

[tadatuta]

@EddyVinck you should use mixes with special blocks for that:

<div class="my-block margin-bottom"></div>

or even better use variables in styles instead of extra markup.