PostCSS syntax highlighting for Sublime Text. This package is fork of Syntax Highlighting for Sass by @P233 with few changes making this more useful rather Sass package:

• Using SCSS syntax highlighting. This covers most of PostCSS possible syntax. Removed Sass syntax highlighting and all Sass completions;
• Support for CSS custom properties var(--variable-name) and --variable-name;
• Automatic enable syntax highlighting by *.pcss and *.postcss file extensions;
• Standard CSS comments (/* comment */) instead of Sass single line comments (// comment).

There is a lot of possible improvements can be made to this syntax, but frankly, I don't understand in syntax files much and hope for the help of the community.

Install with Package Control.

Open the Command Palette Cmd+Shift+P (OS X) or Ctrl+Shift+P (Linux/Windows) and select “Package Control: Install Package”, then search for Syntax Highlighting for PostCSS.