kai-homepage changes

[KailuanLiu]

Developer: Kailuan Liu

Closes #{ISSUE NUMBER HERE}

Pull Request Summary

pull request for making changes in the mock project

Modifications

{list out the files created/modified and a brief description of what was changed}

Testing Considerations

{list out what you have tested and what the reviewer should verify}

Pull Request Checklist

• [ x] Code is neat, readable, and works
• [ x] Comments are appropriate
• [ x] The commit messages follows our guidelines
• [ x] The developer name is specified
• [ x] The summary is completed
• Assign reviewers

Screenshots/Screencast

{put screenshots of your change, or even better a screencast displaying the functionality}