yle="border: 0.5pt solid blue"><br/>
Line 2</p>

<p>Line break within a font tag: 
<font face="Trebuchet MS,Arial,Helvetica,sans-serif">ABCDE<br/>FGHIJK</font></p>

<p>Line break within two nested spans: <span>span 1 <span>2<br/>break</span></span></p>

<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec at
odio vitae libero tempus convallis. Cum sociis natoque penatibus et
magnis dis parturient montes, nascetur ridiculus mus. Vestibulum purus
mauris, dapibus eu, sagittis quis, sagittis quis,