The <WBR>
element stands for Word BReak. This is for the very rare case when a <NOBR>
section requires an exact break. Also, it can be used any time the browser can be helped by telling it where a word is allowed to be broken. The <WBR>
element does not force a line break, <BR>
does that, it simply lets the browser know where a line break is allowed to be inserted if needed.
The <WBR>
Element is supported only by Netscape and Internet Explorer.