This is a replacement for the deprecated HTML tag or the zero-width space ​ which is not supported in all web browsers (most notably the Internet Explorer). It is used as a potential word-break in long strings and character-sequences like formulas or SMILES strings.
See also
Compatibility
N.B.: The template was partially changed, so these results can be irrelevant.
- Mozilla 1.7: works fine
- Firefox 1.0.6: works fine
- MS Internet Explorer 6.0.2900: renders as a space of 1 pixel
- Netscape Communicator 4.75: renders as a space
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