[Forwardport] Resolved : Mobile device style groups incorrect order #17265
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
Original Pull Request
#16959
Description
Style groups for mobile devices (max-width) are specified in the wrong order.
In
lib/web/css/source/lib/_responsive.lessthe style groups run breakpoint-size ascending: 319px, 479px, 639px, 767px, which leads to outputting max-width media queries breakpoint-size ascending - the last-defined breakpoint overrides smaller screen size breakpoints...Fixed Issues (if relevant)
Style groups for mobile devices (max-width) are specified in the wrong order.
Expected result
CSS should be output as follows:
Actual result
CSS is output as follows:
Contribution checklist