Let's look at the various elements of the Semantic Web.

|Semantic Web Elements_3|

[01. Elements for layout]

[Semantic Web] Explanation following ‘Semantic Web Elements_2’.
[1-1 Content expression]
:

What happens if you use two or more h1~h6 elements in one section element? When used/used repeatedly, it is determined according to the level of the element. When h1~h6 elements of the same level are used, one section element is divided into two section elements, and when h1~h6 elements of a different level are used, another section element is created inside. Of course, this is implicitly divided.