For links to download Semantic UI, check our our download page.
Semantic uses command-line tools to build your project while theming. After getting Semantic, you will need to install nodejs and gulp to run the build process.
Once you're up and running. Navigate to the semantic directory and install the npm dependencies
# install dependencies
npm install
# start install script
gulpThe first time you run gulp you will be greeted with an interactive installer
# install
gulpThe installer will let you select which components to include, and specify paths for your project.
| Installation Type | Description |
|---|---|
| Automatic | Installation will use the default paths, outputing css files to dist/ and packaging all components together |
| Express | Will let you move your site folder and your dist folder and select from a list of components to include in your concatenated release. |
| Custom | Will prompt you for all available options |
The install process will create two files: semantic.json stores paths for your build and sits on the top-level of your project, theme.config is a LESS file that exists in src/ and allows you to centrally set the themes for each UI component.
The installer will also create a special folder which contains your site-specific themes. The default location for this is src/site. For more information on using site themes, see the theming guide below.
If you prefer these files and folders can be moved manually instead of using the installer.
mv semantic.json.example semantic.json
mv src/theme.config.example src/theme.config
mv src/_site src/site
vi semantic.jsonYou can use normal package manager functions to update your project, just be sure to re-install semantic after upgrading. Re-install will extend your semantic.json but not overwrite it
bower update
cd ./bower_modules/semantic-ui
gulp installFor a full list of settings for semantic.json, check the defaults values which it inherits from.
After setting up your project you have access to several commands for building your css and javascript.
gulp # runs default task (watch)
gulp watch # watches files for changes
gulp build # builds all files from source
gulp install # re-runs installSemantic creates minified, and uncompressed files in your source for both individual components, and the components specified for your packaged version.
Keep in mind semantic will automatically adjust URLs in CSS and add vendor-prefixes as part of the build process. This means definitions and theme files do not need vendor prefixes.
In addition to the paths set in
semantic.json, you can serve files to a second location, for example, a docs instance by using a separate config filetasks/admin/docs.json. Using a copy of the SUI documentation may work well internally for creating a style guide to hack on the theme designs for your project.
gulp serve-docs
gulp build-docsBuilding and watching Semantic is only necessary while adjusting your UI. This is usually the first part of building a new project, and a separate process than building-out pages in your site.
During this architecting phase you can try downloading different themes, adjusting your site-wide settings (font-family, colors, etc) and tweaking components in your site's component overrides.
Files in the examples/ folder of your project can be useful for testing out changes in your UI. For example, you might run gulp watch download a new theme to src/site/themes/ then adjust your theme.config file with the name of the new theme and refresh examples/kitchensink.html to inspect changes in the theme.
You will only need to use Semantic's build tools while refining your UI, while designing pages you can rely on the packages in dist/ and your software stack's normal build set-up.
gulp watch will automatically recompile only the necessary definition files when you update semantic.config or any .variables or .overrides file.