You can leverage the Visual Studio Code CSS Language Server to enhance your development experience with support for CSS, LESS, and SCSS.
You can use it by following these instructions:
Once Visual Studio Code is installed, it will store the CSS language server in:
${BASE_DIR}/resources/app/extensions/css-language-features/server/dist/node/cssServerMain.js
After that you can create the CSS Language Server with the language server template:
LSP4IJ tries to generate the proper cssServerMain.js file path according to your OS, but you may have to adjust it in the command text field.