Drupal uses the concept of regions to divide up a page. The regions are used to house different parts of the page. For example, The Content region holds the page content, the header region usually holds the navigation and the footer region holds the footer content.

Drupal uses regions because in a standard Drupal website, site builders and editors are able to place blocks and fields within them. This is not necessary when using Site Studio as you are able to place blocks and other content using the Layout builder. The exception to this is the Content region. This must be added to your Master template as it's required to render your Content templates and Views templates within your Master template.

The content region

The content region is where your Content templates are rendered. 

Drupal uses the concept of regions to divide up a page. The regions are used to house different parts of the page. For example, The Content region holds the page content, the header region usually holds the navigation and the footer region holds the footer content.

Drupal uses regions because in a standard Drupal website, site builders and editors are able to place blocks and fields within them. This is not necessary when using Site Studio as you are able to place blocks and other content using the Layout builder. The exception to this is the Content region. This must be added to your Master template as it's required to render your Content templates and Views templates within your Master template.

The content region

The content region is where your Content templates are rendered. 

Using other regions