Hi. The p tag has margin bottom by default from Bootstrap. Change it to div or span

Tip:

In TinyMCE and JCE is visual blocks option. Turn it ON that you can see what tags are in your content.

Tip 2:

section - is a semantic tag and must necessarily contain at least one heading h. And the use of section only to place a separator is too wasteful.

For the entire content of this page, only one section would be required. With your approach, you got five times the code that is bad for SEO and is excessive for performance.