Detected by
http://stylelint.io/user-guide/rules/block-opening-brace-space-before/
http://stylelint.io/user-guide/rules/selector-combinator-space-after/
http://stylelint.io/user-guide/rules/at-rule-name-space-after/
http://stylelint.io/user-guide/rules/selector-list-comma-space-before/
http://stylelint.io/user-guide/rules/media-feature-colon-space-before/
http://stylelint.io/user-guide/rules/selector-list-comma-newline-after/