<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.
NOTE : The
<WBR> Element is supported only by Netscape and the Internet Explorer.