# How to add custom CSS code in the backend level and create new docker image

**URL:** <https://meta.discourse.org/t/how-to-add-custom-css-code-in-the-backend-level-and-create-new-docker-image/109535>\
**Category:** Product Support\
**Created:** [19 בפברואר,‏ 2019,‏ 10:50am UTC](https://meta.discourse.org/t/how-to-add-custom-css-code-in-the-backend-level-and-create-new-docker-image/109535 "2019-02-19T10:50:34Z")\
**Posts on this page:** 1\
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**Author:** ![Muthukkumar](https://avatars.discourse-cdn.com/v4/letter/m/77aa72/32.png) [@Muthukkumar](https://meta.discourse.org/u/Muthukkumar)\
**Post date:** [19 בפברואר,‏ 2019,‏ 10:50am UTC](https://meta.discourse.org/t/how-to-add-custom-css-code-in-the-backend-level-and-create-new-docker-image/109535/1 "2019-02-19T10:50:34Z")

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I want to update the custom CSS code in the discourse. I have installed discourse docker image and I want to create new docker image with my CSS code as well.  
I want to add one custom CSS file into the Light theme under the Common. I know the process of adding the CSS file in the front end side, but this is for code level I want to add the CSS file then I want to create new docker image.

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