Semantic UI React does not have its own styling system and fully relies on the theming of Semantic UI. It's really powerful, you don't need to know LESS or CSS you can simply update values of variables or use styles from predefined themes.
In fact, all you know about theming and styling of Semantic UI is fully applicable to Semantic UI React.Learn more about themingCreating themes
Semantic UI offers its own build system that uses Gulp and produces prepared CSS files.
In all cases, we recommend to use the LESS package and tune it into your build system with Webpack. The LESS package also does not depend on Gulp and other cruft things. However, this package is not friendly for Webpack and requires additional configuration.Semantic UI LESSConfiguring Webpack for theming
The key point is that you don't want
eject, but you want to customize styles 🤔
Don't eject your Create React App
This is a one-way operation. Once you
eject, you can't go back!
First of all, please remove existing references for
semantic-ui-css package or styles included from CDN to avoid styles duplication.
Create React App does not support LESS out of the box; we propose to use
@craco/craco to add its support and avoid
eject. You have to install required packages:
And then update your
package.json and create
We made a special CLI tool that will copy necessary files with the skeleton of your customization.
This file is mostly prepared, but you have to change some details in the bottom of it:
You have to import
semantic.less file in your entry file.
You can now go e.g. to
src/semantic-ui/site/globals/site.variables and add:
Which will change your primary color and background color of the