FWIW - “wysiwyg HTML” editors (such as MS FrontPage for example, now discontinued for good reason) are notorious for creating a massive overhead and dirty code in any pages it creates. You would be better off getting to know HTML/CSS and using a proper text editor. There’s oodles of free information, resources and training available on the web with examples, it will pay you in the end to learn how to do it properly.
w3schools HTML and
CSS are good places to start.