wbr
Definition and Usage
wbr stands for Word Break Opportunity. HTML<wbr> element represents a word break opportunity—a position within text where the browser may optionally break a line, though its line-breaking rules would not otherwise create a break at that location. or In other words, <wbr> tag can be used on very long words or other long strings of text with no spaces. Without the <wbr> tag, these long strings of text could either wrap in strange place (making it difficult to read), or not wrap at all.