FM2017 publishing to HTML5 how to publish a paragraph with a responsive background?

[#1]

I'm consulting the FrameMaker Online Help but can't find any instruction to get an output similar to what can be seen in that Help!!!

I'd like to display paragraphs in a responsive frame with a coloured background.

When I publish FM2017 to HTML5 my tables are not responsive. Lines created in the reference pages and defined in a paragraph style to display above and below the paragraph are not at all responsive (and act so wired that I can't keep them the HTML5 output).

I'd like to know how to get nice responsive paragraphs like these:

Can anyone help me?

Thanks!