Renders a "block" of content. A block is visually distinguished from the surrounding content, as determined by the UI Set.
For example the UI Set or theme may add a border or "well" around the content - perhaps as a
with a specific CSS class. A title may also be rendered in a way defined by the UI Set.
<p>Thank you for visiting our awesome site.</p>
The body is rendered as the body of the block section.
|title||No||An 18n message code to resolve and render as the title of the block, or inline text|
|titleArgs||No||Optional argument list for the i18n message|