Merge pull request #24 from stuycs-softdev/ben

Ben
Update with css
Update css, fix merge conflict
Merge pull request #25 from stuycs-softdev/judy

update css in changeinfo.html, fix merge conflict
Update changeinfo.html page, Add horizontal menu to index.html
Merge pull request #26 from stuycs-softdev/judy

Update changeinfo.html page, Add horizontal menu to index.html
Persistent menu