Yes, I suppose, as there are websites like WordPress, Blogger, and Wix, amongst smaller websites that automate tasks like generating CSS code for a certain style. But websites made for doing such tasks are made in HTML, so it's best to learn HTML yourself.
We create "one page" mean web page :-)
if we create more pages mean Web Site.
For designing , we use Style and soon on !!!
So, here : https://www.sololearn.com/Courses/
we have all to learn more, to design a HTML code and to progress.
Ex : https://code.sololearn.com/W5V1qj7EjzBE/#html