I read that these files are generated from .less files. So it is even allowed to override them?

1 Answer 1


these are generated files. Created by the command setup:static-content:deploy. You are not supposed to change them.

You are supposed to create your own less files or extend existing ones.

Please read the docs https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/css-topics/css-overview.html

  • Do I have to run an external compiler if I use .less in magento 2?
    – Black
    Feb 25, 2020 at 15:07
  • It depends on the deploy-mode you are working in. Feb 26, 2020 at 9:13
  • I think I will stay at css, its much easier.
    – Black
    Feb 26, 2020 at 10:17
  • But it's extremely vurnerable for errors! You should not do this Feb 26, 2020 at 10:52
  • I never came across any errors and I do this all the time. There is no good tutorial or documentation on how to use .less, all I found was not working. So I am forced to use .css until they will finally release a working walkthroug for beginners.
    – Black
    Feb 26, 2020 at 11:04

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