Another comment explains why the page is difficult to parse: > It's a very well thought through article by the developer of Nota, trying to bring EPUB format

Another comment explains why the page is difficult to parse: > It's a very well thought through article by the developer of Nota, trying to bring EPUB format up to parity with PDF. It's a serious start and they've already written a viewer. In fact, the article itself is displayed in a browser-based wasm port of the viewer (and looks good!).