1) Use the Visual Editor to generate HTML and CSS on a spare page which we will call HTML/CSS Generator.
2) Learn a bit of HTML and CSS at W3Schools. Do this in the evening.
3) Use your new knowledge to tweak the generated code to your requirements.
4) Exclude the HTML/CSS Generator from the visible website.
5) Copy and paste the tweaked generated code to the visible website.
NEW BUSINESS or NEW COMPANY ?
We have introductory pages on our mobile-friendly website for new businesses and for new companies. These introductions will be accessible via QR codes in due course, but you can see them now by clicking on any link.