Why:
* There is a data-equalizer attribute on the parent div, and a data-equalizer-watch on a sibiling div, and that breakes both the purpose of those values (Resize child elements of data-equalizer to have the same height. Ref: http://foundation.zurb.com/sites/docs/equalizer.html)
* That lack of attribute was breaking many specs consistently on localhost with phantomjs 2.1.1 on macos sierra (and ubuntu as reported by @amaia)
How:
* Just adding the missing 'data-equalizer-watch' attribute on the div child of the one using 'data-equalizer'
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