Web Component: Add Masthead overflow feature - Group 5

[ibmdotcom-bot]

User Story

As a [user role below]:
IBM.com Library developer

I need to:
create/change the Masthead overflow feature request

so that I can:
provide the ibm.com adopter developers components they can use to build ibm.com web pages

Additional information

• Story within Storybook with corresponding knobs
• Utilize Carbon
• Create with Shadow DOM and Custom Elements standards
• See the Epic for the Design and Functional specs information
• The corresponding React development issue (React: Add the overflow feature to the Masthead #3875)
• Visual Designs & Design Specs Box folder link
• Prod QA testing issue (Web component: Masthead overflow feature request Prod QA testing  #4456)

Acceptance criteria

• Include README for the web component and corresponding styles
• Create Web Components styles in styles package
• Do not create knobs in Storybook that include JSON objects
• Break out Storybook stories into multiple variation stories, if applicable
• Create codesandbox example under /packages/web-components/examples/codesandbox and include in README
• Minimum 80% unit test coverage
• If a design is provided, the Designer is included as a Reviewer in the Pull Request
• A comment is posted in the Prod QA issue, tagging Praveen and Chetan, when development is finished