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It would be nice to be able to hide something iff a phone is in portrait mode. When I'm in landscape mode on my phone I could fit a little bit more info, but without having a more discrete control I can not do that.
I don't think we'll be adding this level of granularity to the core, so for now please implement this on your own. If it's a trend we see on the rise, we can revisit. Thanks!
Fair enough, thanks.
When you get down to the width where the bootstrap layout switches to "stacked", the interface changes drastically. At the time, I usually hide certain elements that aren't necessary. I would want them hidden before then. Therefore, using hidden-phone is too aggressive and hides the elements far too early. Since the interface changes so drastically when switching to the stacked interface, I think it really makes sense to have some hidden-* and visible-* classes to use in hidden/showing elements in that case.
I think including these classes in core bootstrap would make sense, given that the stacked layout is part of core, and creating an interface that looks good in both non-stacked and stacked layouts can present certain challenges. These new classes would be a welcome compliment.