Most popular web based applications such as NextCloud, WordPress, etc. are supported by many OpenID Connect Clients available but it looks complete different for less popular or in-house applications.
The URL to the complete demo is: https://ssi.codeb.io/oidcclient.html
To use the above demo please contact us for test accounts or just use other public OIDC Providers like Google, etc.
Note you can also use our public test account with username: codebdemo and password: test