@storybook/addon-viewport/dist/modern/manager.js

Build responsive components by adjusting Storybook’s viewport size and orientation

import * as React from 'react';
import { addons, types } from '@storybook/addons';
import { ADDON_ID } from './constants';
import { ViewportTool } from './Tool';
addons.register(ADDON_ID, () => {
  addons.add(ADDON_ID, {
    title: 'viewport / media-queries',
    type: types.TOOL,
    match: ({
      viewMode
    }) => viewMode === 'story',
    render: () => /*#__PURE__*/React.createElement(ViewportTool, null)
  });
});