User blog comment:Martirsadota/The Great HTML5 Switcheroo: How it Affects TTKs Like You/@comment-36507278-20180809045820/@comment-26461371-20180810035016

You're in luck! HTML5 works just as great in MacOS as it down in Windows or Linux, and this is because HTML5 compatibility is defined by browsers, not the operating system. SO as long as you run an HTML5-compliant browser (hint: the latest versions of all major browser brands do), you're fine.