A WBreak corresponds to an HTML <br/> element.
WBreak forces a line break between inline
widgets. To force inline widgets on a separate line, it is
usually more convenient to arrange them in different container
widgets. By default, Wt uses CSS to lay out contents, and an
important property of each widgets being layed out is whether it
is inline (and thus behaves like words organized in lines), or
block.
Related topics: Style and Layout.