I've just released my modern public domain online rendition of the CLOS MOP! This is by far the best available version right now. See the announcement twitter thread for a bit more context and details. Thanks very much to Robert Strandh for inspiring me (through his initial public domain HTML conversion) to work on this project, earlier than I would otherwise have!
Now all my sites are mobile-friendly! (3 months well spent!)
(On desktop, you can just resize the window narrow to test.
Or better yet, use Chrome or Firefox and press F12, then go into "device mode".)