Instalacja modułu

composer require 'drupal/cva:^1.0'
vendor/bin/drush en -y cva

DDEV

ddev composer require 'drupal/cva:^1.0'
ddev drush en -y cva
{% set button = html_cva(
  base: 'button',
  variants: {
    variant: { primary: 'bg-blue', secondary: 'bg-gray' },
    size: { sm: 'text-sm', md: 'text-base', lg: 'text-lg' }
  }
) %}

<button class="{{ button.apply({variant: 'primary', size: 'md'}) }}">
  Click me
</button>