We start by adding a section, this will always be within the content of the page. Builder has sections and flex sections.
Sections:
Each element inside the section has its own toolbar, there are three containers:
Section (with blue border ): This is the main container, it can contain more than one row.
Row (width yellow border): contains the columns and defines the number of columns it will have.
Column (width pink border): contain the widgets, these appear bordered in blue.
