Help:HTML
From Memory Alpha, the free Star Trek reference.
Some HTML tags can be used when editing Memory Alpha. However, the wiki formatting described at Help: Editing is recommended rather than these tags wherever possible.
The following HTML tags may be used, as can inline CSS styles:
[edit] Wikitext versions
For many HTML elements, more convenient wikitext code is available; for example, <b> can be replaced with a triple ' (''') and <i> with a double '. To achieve both at once, combine the codes for five ticks ('''''). Using the same code again later will close the code. See Help: Wiki markup for more information. On the other hand, HTML tags allow an id that can be referenced in one's user style css, and allows the tag to be used as link target.