An inline element used to force a new line.
The welcome.mlyt layout can be found in the MCS/repository/xml-repository directory.
<?xml version="1.0" encoding="UTF-8"?>
<canvas layoutName="/welcome.mlyt" pageTitle="br">
<pane name="background">
<p>
First line.<br/>
Second line.<br/><br/>
Third line.</p>
</pane>
</canvas>