For now, you can generate source maps using Grunt: http://devdocs.magento.com/guides/v2.0/frontend-dev-guide/css-topics/css_debug.html
But it will be useful to to it using the Oyejorge Less compiler.
For now, you can generate source maps using Grunt: http://devdocs.magento.com/guides/v2.0/frontend-dev-guide/css-topics/css_debug.html
But it will be useful to to it using the Oyejorge Less compiler.