```md
<!-- Button.stories.mdx -->

import { Meta } from '@storybook/addon-docs';

import { Button } from './Button';

<Meta
  title="Button"
  parameters={{
    backgrounds: {
      default: 'twitter',
      values: [
        { name: 'twitter', value: '#00aced' },
        { name: 'facebook', value: '#3b5998' },
      ],
    },
  }}
  component={Button}
/>
```