&
&
&
The black one is an ordinary character, but if you do not write a space after it, it is used as part of a special character's name. In this chart it is used to show the special characters and allow copying and pasting their names).
< &lt;
(after this code you can write > as usual).
espacio &nbsp;
super­cali­fragilistic­expiali­docious &shy;
"soft" hyphen — it breaks a word at the end of a line only if it is too long (otherwise, it is invisible).
<nobr> <nobr> ... </nobr>
To prevent a phrase, or a word with special characters like " / ", from breaking at the end of a line.
&mdash; / &#8212; / &#151;
long hyphen
&ndash;
short hyphen
crossed out <span style="text-decoration: line-through">
(crossed out characters)
</span>
&lsquo;
left single quote
&lsquo;
right single quote
« &laquo;
left angle quote
» &raquo;
right angle quote
§ &sect;
section / chapter
± &plusmn;
plus / minus sign
&larr;
left arrow
&rarr;
right arrow


More characters:
www.degraeve.com
www.rapidtables.com
www.w3.org