trying to modify magento theme blank / luma i realized that code with name -> app/design/frontend/magento/theme/web/css/source/lib is not available in the application, but referred many times in other files mainly .less code.

an example is less code contained in: app\design\frontend\Magento\blank\web\css\styles-l.less

in line 30 displays:

@import 'source/lib/_responsive.less';

but no folder /lib or file _responsive.less is available.

any guidance appreciated.

1 Answer 1


You will find this in folder magento-root/lib/web/css/source/lib/_responsive.less

Thank you

  • thanks, any idea why the theme luma requested inside its code and not in LIB?
    – s_h
    Commented Jan 2, 2016 at 7:10
  • 1
    No such Idea as I have just started Magento 2. But will get back as soon as I find anything. Basically, this has been done because the structure of responsive has to be same all across all the themes. Commented Jan 2, 2016 at 12:48

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