Example One - The Layout

The Tabbed Content layout can be displayed to appear Full width, or using the 'Style Tab' users are able to shrink the size of the container to the size you desire, this would also allow content on the page to wrap around your content box.

Example Two - Selecting Colours

As an admin user, you have full control of the colours used within the Content Block, you will need to check any colours you may select meet accessibility guidelines.