A container is where the main content and information appears. In general, omit the header and footer part of the website and what remains is the container.
The content area and the sidebar are parts of the container. The content area is technically called as the primary container, whereas the sidebar is the secondary container.
You can easily manage the Container Width with a slider. Go to:
Appearance Customizer Layout Site Layout.
You can apply container layouts globally for the entire website through the Customizer option at:
Appearance Customizer Layout Container.
Different containers can be applied for individual pages and posts from meta settings as well.
Bstone offers various container layouts options. Learn about each of them on the links below: