<!DOCTYPE HTML> <html> <head> <style type="text/css"> p { margin: 5px 1em; width: 0; } p > span { background-color: silver; } </style> </head> <body> <p>abcdef abcdef</p> <p>abcdef) (abcdef</p> <p>abcdef abcdef</p> <p><span>abcdef abcdef</span></p> <p>abcdef abcdef</p> <!-- U+2007 is FIGURE SPACE --> <p>abcdef abcdef</p> <p>abcdef) (abcdef</p> <p>abcdef  abcdef</p> <p><span>abcdef  abcdef</span></p> <p>abcdef   abcdef</p> <!-- U+2011 is NON-BREAKING HYPHEN --> <p>abcdef‑abcdef</p> <p>abcdef)‑(abcdef</p> <p>abcdef ‑abcdef</p> <p>abcdef‑ abcdef</p> <p>abcdef‑‑‑abcdef</p> <!-- U+202F is NARROW NO-BREAK SPACE --> <p>abcdef abcdef</p> <p>abcdef) (abcdef</p> <p>abcdef  abcdef</p> <p><span>abcdef  abcdef</span></p> <p>abcdef   abcdef</p> </body> </html>