old_contents: from coalib.bearlib.abstractions.Linter import linter
  from coalib.bears.requirements.NpmRequirement import NpmRequirement
  
  
  @linter(executable='postcss',
          output_format='corrected',
          result_message='Add vendor prefixes to CSS rules.',
          prerequisite_check_command=('postcss', '--use', 'autoprefixer'),
          prerequisite_check_fail_message='Autoprefixer is not installed.')
  class CSSAutoPrefixBear:
      """
      This bear adds vendor prefixes to CSS rules using ``autoprefixer`` utility.
      """
      LANGUAGES = {"CSS"}
      REQUIREMENTS = {NpmRequirement('postcss-cli', '2'),
                      NpmRequirement('autoprefixer', '6')}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
  
      @staticmethod
      def create_arguments(filename, file, config_file):
          return '--use', 'autoprefixer', filename
  
new_contents: from coalib.bearlib.abstractions.Linter import linter
  from coalib.bears.requirements.NpmRequirement import NpmRequirement
  
  
  @linter(executable='postcss',
          output_format='corrected',
          result_message='Add vendor prefixes to CSS rules.',
          prerequisite_check_command=('postcss', '--use', 'autoprefixer'),
          prerequisite_check_fail_message='Autoprefixer is not installed.')
  class CSSAutoPrefixBear:
      """
      This bear adds vendor prefixes to CSS rules using ``autoprefixer`` utility.
      """
      LANGUAGES = {"CSS"}
      REQUIREMENTS = {NpmRequirement('postcss-cli', '2'),
                      NpmRequirement('autoprefixer', '6')}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
      CAN_FIX = {'Syntax', 'Formatting'}
  
      @staticmethod
      def create_arguments(filename, file, config_file):
          return '--use', 'autoprefixer', filename
  
subject: Add CAN_FIX