This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Niels Leenheer
html5test.com
did:plc:fdu5alepkigblthylzkahr4f
Yes!
I use this in one of my talks about the resilience of HTML. It's a joke, but also to point out that very little just is removed from the web platform. Yes, marque may be "deprecated" or "obsolete", it is still part of the standard and works in browsers.
Now <blink> on the other hand...
2025-10-07T11:16:45.162Z