I have the exact same question as
http://forum.abantecart.com/index.php/topic,3711.msg15999.html#msg15999 posted in 2015 but the answer given does not solve my problem, and it says to start a new thread cause the previous one is older than 120 days, so here goes:
I want to be able to edit any and all pages of Abantecart with HTML and ideally also CSS. The solution in the post above says to use the blocks. I don't want to do that, because I want to integrate the home page of Abantecart (the shop front) into my existing website and add my own navigation bar on the top, like this screenshot attached (I am using BlueGriffon WYSIWYG editor).
As you can see, I added my own navigation bar at the very top of the page. I did this by going to my store front then right clicking and selecting "view source" and copy pasted the code to the HTML editor. But, after I save it, where do I upload this HTML file?
I also asked another question about the changes in CSS not showing in the page, please have a look at that too.
Thank you