Org Mode support for Cascading Style Sheets
CSS is a mechanism for adding style to Web documents.
CSS can't be executed. Org mode supports tangling of CSS source code blocks.
Requirements and Setup
Emacs includes a css-mode.
There is no need to activate CSS with
Org Mode Features for CSS Source Code Blocks
There are no language-specific default values or header arguments for CSS.
CSS doesn't support sessions.
CSS source code blocks don't return results. They exist solely for tangling.