Revert "Update demo.htm"

This reverts commit cf9f8e10f45c5b4d3fa0adb29d1ca59c1687b3e9.
Revert "Revert "Update demo.htm""

This reverts commit 58573c41e41b412ed913c3cd8184f1f88baadfaa.
Revert "Revert "Revert "Update demo.htm"""

This reverts commit 48ed927e9b5ea17513856814487624bfc2a695db.