You may have to someday fix a page now and then. HTML isn't that hard but some of the finer tricks had me diving into HTML but not enough I would have to learn it all.
The OTHER issue is that you didn't bring up is how your design was going to get online.
I've seen folk create a website then crash when it came time to put it up on the web server. Some websites have use FTP, some use an uploader, and so on.
What about WordPress? Start at https://codex.wordpress.org/New_To_WordPress_-_Where_to_Start
Does anyone have recommendations for website design software, either free or paid, that is fairly easy to use, has some great features, and does not require knowledge of html language? Oh yes, Windows 10 compatible would be very helpful.