Importing Clay CSS into a Theme

Clay CSS fills the gaps between Bootstrap and the specific needs of Liferay DXP. Bootstrap features have been extended to cover more use cases. Here are some of the new components added by Clay CSS:

  • Aspect Ratio
  • Cards
  • Dropdown Wide and Dropdown Full
  • Figures
  • Nameplates
  • Sidebar / Sidenav
  • Stickers
  • SVG Icons
  • Timelines
  • Toggles

Several reusable CSS patterns have also been added to help accomplish time consuming tasks such as these:

  • truncating text
  • content filling the remaining container width
  • truncating text inside table cells
  • table cells filling remaining container width and table cells only being as wide as their content
  • open and close icons inside collapsible panels
  • nested vertical navigations
  • slide out panels
  • notification icons/messages
  • vertical alignment of content

Next you can learn more about Clay’s structure.

Clay CSS Structure

Clay CSS is bundled with two sub-themes: Clay Base and Atlas. Clay Base is Liferay DXP’s Bootstrap API extension. It adds all the features and components you need and inherits Bootstrap’s styles. As a result, Clay Base is fully compatible with third party themes that leverage Bootstrap’s Sass variable API.

Atlas is Liferay DXP’s custom Bootstrap theme that is used in the Classic Theme. Its purpose is to overwrite and manipulate Bootstrap and Clay Base to create its classic look and feel. Atlas is equivalent to installing a Bootstrap third party theme.

You can learn how to customize the Atlas theme next.

Customizing Atlas in Liferay DXP

If you want to include all the Classic Theme’s files, you can skip these steps and move on to the next section.

Follow these steps to customize the Atlas theme:

  1. In your theme’s /src/css directory (for legacy ant themes, place in /_diff/css) add a file named clay.scss with the code below and save:

    @import "clay/atlas";
  2. Add a file named _imports.scss with the code below and save:

    @import "bourbon";
    @import "mixins";
    @import "clay/atlas-variables";
  3. Add a file named font_awesome.scss and add the font-awesome path and import:

    // Icon paths
    $FontAwesomePath: "font-awesome/font";
    @import "font-awesome/scss/font-awesome";
  4. Add a file named _clay_variables.scss. All your Atlas, Bootstrap, and Clay Base variable modifications must be placed in this file.

  5. Add a file named _custom.scss with the code below and save:

    /* Use these inject tags to dynamically create imports for 
    themelet styles. You can place them where ever you like in this file. */
    /* inject:imports */
    /* endinject */
    /* This file allows you to override default styles in one central 
    location for easier upgrade and maintenance. */

Place your custom CSS in this file. Next you can learn how to extend Atlas with the Classic theme.

Extending Atlas with the Classic Theme

To extend the Atlas theme with the Classic theme, copy all the files located in these directories into your theme:


You can also automatically copy these files into your theme using the gulp kickstart command and following the prompts.

Next you can learn how to customize the Clay Base.

Customizing Clay Base

You can customize Clay Base with just a few imports.

In your custom theme’s /src/css folder (legacy ant themes: /_diff/css) add a file named font_awesome.scss with the code below and save:

// Icon paths

    $FontAwesomePath: "font-awesome/font";
    @import "font-awesome/scss/font-awesome";

Then in that same folder, add a file named _clay_variables.scss. All your Atlas, Bootstrap, and Clay Base variable modifications must be placed in this file.

As mentioned earlier, any custom CSS should be placed in _custom.scss.

Now you know how to use Clay CSS in your theme!

Applying Clay Styles to Your App

Integrating Third Party Themes with Clay

« Clay CSS and ThemesIntegrating Third Party Themes with Clay »
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