Widgets provide rich functionality within WikiText. They have the same syntax as [[HTML elements|HTML in WikiText]], but the tag name always starts with `$`. For example:
* The content of a widget is [[parsed|WikiText Parser Modes]] in [[inline mode|Inline Mode WikiText]] unless the opening tag is followed by two linebreaks, which forces [[block mode|Block Mode WikiText]]
** [[inline mode|Inline Mode WikiText]] means that [[block mode|Block Mode WikiText]] parse rules like headings, tables and lists are not recognised