Created by: donquixote
See https://github.com/twbs/bootstrap/issues/10203#issuecomment-36443874 An additional breakpoint at 480px has been requested heavily, but there have been concerns about BC, especially regarding features that regard those ranges as min-max intervals instead of open-end intervals.
Instead of redefining existing ranges, this PR introduces subdivisions of the old ranges:
- xs = 0..767 or 0..* (no change)
- xs-A = 0..479 or 0..*
- xs-B = 480..767 or 480..*
- sm = 768..991 or 768..* (no change)
- md = 992..1199 or 992..* (no change)
- lg = 1200..* (no change)
E.g. you can now write
<div class="row">
<div class="col-xs-B-6 col-sm-4 col-md-3">..</div>
..with the following effect:
- 0..479px: 1 column
- 480px..767px: 2 columns
- 768px..991px: 3 columns
- 992px..*: 4 columns