To configure content and sidebar layout and style, you can go to Appearance > Customize > Content & Sidebar.
Content section is the main section between header and footer. This section can have 1 column or 2 columns, depending on the layout you chose. Those columns are:
- Main Content Area
You can customize the layout of the content section on the Appearance > Customize > Content & Sidebar > Content Section. There are 4 layouts available:
- Full content, no sidebar
- Narrow content, no sidebar
- Right sidebar
- Left sidebar
Main Content Area
Main Content Area is the 1st column in the Content Section. This is where the post/page content will be displayed along with subsidiary content like Comments, Author Bio, etc. To customize the Main Content Area, you can go to Appearance > Customize > Content & Sidebar > Main Content Area.
Sidebar Area is the 2nd column in the Content Section, which is optional to have. This column will contain widgets that you can add via Appearance > Widgets page. To customize the Sidebar size, widgets style, typography, and colors, you can go to Appearance > Customize > Content & Sidebar > Sidebar Area.
Use different content & sidebar settings in each individual post/page.
You can set a different layout for each page type via Page Settings.