Use between six = (for the biggest header) and two = (for the smallest header) on both sides of a text to render it as a header.

LANGUAGE	FORMATTER	LANGUAGE	FORMATTER	LANGUAGE	FORMATTER
ABAP	abap	Actionscript	actionscript	ADA	ada
Apache Log	apache	AppleScript	applescript	ASM	asm
ASP	asp	AutoIT	autoit	Axapta/Dynamics Ax X++	xpp
Bash	bash	BlitzBasic	blitzbasic	BNF	bnf
C	c	C for Macs	c_mac	c#	csharp
C++	cpp	C++ (QT extensions)	cpp-qt	CAD DCL	caddcl
CadLisp	cadlisp	CFDG	cfdg	ColdFusion	cfm
CSS	css	D	d	Delphi	delphi
Diff-Output	diff	DIV	div	DOS	dos
dot	dot	Eiffel	eiffel	Fortran	fortran
FOURJ's Genero 4GL	genero	FreeBasic	freebasic	GML	gml
Groovy	groovy	Haskell	haskell	HTML	html4strict
INI	ini	IO	io	Inno Script	inno
Java 5	java5	Java	java	Javascript	javascript
LaTeX	latex	Lisp	lisp	Lua	lua
Matlab	matlab	Microchip Assembler	mpasm	Microsoft Registry	reg
mIRC	mirc	Motorola 68000 Assembler	m68k	MySQL	mysql
NSIS	nsis	Objective C	objc	OpenOffice BASIC	oobas
Objective Caml	ocaml	Objective Caml (brief)	ocaml-brief	Oracle 8	oracle8
Pascal	pascal	Per (forms)	per	Perl	perl
PHP	php	PHP (brief)	php-brief	PL/SQL	plsql
Python	phyton	Q(uick)BASIC	qbasic	robots.txt	robots
Ruby	ruby	Ruby on Rails	rails	SAS	sas
Scheme	scheme	sdlBasic	sdlbasic	SmallTalk	smalltalk
Smarty	smarty	SQL	sql	TCL/iTCL	tcl
T-SQL	tsql	Text	text	thinBasic	thinbasic
Unoidl	idl	VB.NET	vbnet	VHDL	vhdl
Visual BASIC	vb	Visual Fox Pro	visualfoxpro	WinBatch	winbatch
XML	xml	ZiLOG Z80	z80

Use between five = (for the biggest header) and two = (for the smallest header) on both sides of a text to render it as a header.

5. Lists and indents

You can indent text using a ~, a tab or 4 spaces (which will auto-convert into a tab).
~This text is indented
~~This text is double-indented
    This text is also indented
This text is also indented
To create bulleted/ordered lists, use the following markup (you can always use 4 spaces instead of a ~):
Bulleted lists
~- Line one
~- Line two
- Line one
- Line two
Numbered lists
~1) Line one
~1) Line two
1) Line one
1) Line two
Ordered lists using uppercase characters
~A) Line one
~A) Line two
A) Line one
A) Line two
Ordered lists using lowercase characters
~a) Line one
~a) Line two
a) Line one
a) Line two
Ordered lists using roman numerals
~I) Line one
~I) Line two
I) Line one
I) Line two
Ordered lists using lowercase roman numerals
~i) Line one
~i) Line two
i) Line one
i) Line two
To format some text as an inline comment, use an indent ( ~, a tab or 4 spaces) followed by a &.
Example:
~& Comment
~~& Subcomment
~~~& Subsubcomment
To place images on a Wiki page, you can use the image action.
Example:
Links can be external, or internal Wiki links. You don't need to enter a link at all, and in that case just an image will be inserted. You can use the optional classes left and right to float images left and right. You don't need to use all those attributes, only url is required while alt is recommended for accessibility.
To create a link to a wiki page you can use any of the following options:

1. type a WikiName:
   
   FormattingRules
   FormattingRules
   
   
2. add a forced link surrounding the page name by [[ and ]] (everything after the first space will be shown as description):
   
   [[SandBox Test your formatting skills]]
   Test your formatting skills
   
   [[SandBox 沙箱]]
   沙箱
   
   
3. add an image with a link (see instructions above).

To link to external pages, you can do any of the following:

1. type a URL inside the page:
   
   http://www.example.com
   http://www.example.com∞
   
   
2. add a forced link surrounding the URL by [[ and ]] (everything after the first space will be shown as description):
   
   [[http://example.com/jenna/ Jenna's Home Page]]
   Jenna's Home Page∞
   
   [[mail@example.com Write me!]]
   Write me!∞
   
   
3. add an image with a link (see instructions above);
4. add an interwiki link (browse the list of available interwiki tags):
   
   WikiPedia:WikkaWiki
   WikiPedia:WikkaWiki∞
   
   Google:CSS
   Google:CSS∞
   
   Thesaurus:Happy
   Thesaurus:Happy∞
   
   

To create a table, you can use the table action.
Example:
Note that ### must be used to indicate an empty cell.
Complex tables can also be created by embedding HTML code in a wiki page (see instructions below).
Colored text can be created using the color action:
Example:
You can also use hex values:
Example:
Alternatively, you can specify a foreground and background color using the fg and bg parameters (they accept both named and hex values):
Examples:
To create a left floated box, use two < characters before and after the block.
Example:
Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler.
To create a right floated box, use two > characters before and after the block.
Example:
Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler. Some more text as a filler.
Use ::c:: to clear floated blocks.
You can easily embed code blocks in a wiki page using a simple markup. Anything within a code block is displayed literally.
To create a generic code block you can use the following markup:

To create a code block with syntax highlighting, you need to specify a code formatter (see below for a list of available code formatters).

(php;{{color c="red" text="15"}})<br /><?php<br />echo "Hello, World!";<br />?><br />

(php;15)
If you specify a filename, this will be used for downloading the code.
%%(php;15;test.php)
List of available code formatters:

LANGUAGE	FORMATTER	LANGUAGE	FORMATTER	LANGUAGE	FORMATTER
Actionscript	actionscript	ADA	ada	Apache Log	apache
AppleScript	applescript	ASM	asm	ASP	asp
AutoIT	autoit	Bash	bash	BlitzBasic	blitzbasic
C	c	C for Macs	c_mac	c#	csharp
C++	cpp	CAD DCL	caddcl	CadLisp	cadlisp
CFDG	cfdg	ColdFusion	cfm	CSS	css
D	d	Delphi	delphi	Diff-Output	diff
DIV	div	DOS	dos	Eiffel	eiffel
Fortran	fortran	FreeBasic	freebasic	GML	gml
Groovy	groovy	HTML	html4strict	INI	ini
Inno Script	inno	Java 5	java5	Java	java
Javascript	javascript	Lisp	lisp	Lua	lua
Matlab	matlab	Microchip Assembler	mpasm	Microsoft Registry	reg
MySQL	mysql	NSIS	nsis	Objective C	objc
OpenOffice BASIC	oobas	Objective Caml	ocaml	Objective Caml (brief)	ocaml-brief
Oracle 8	oracle8	Pascal	pascal	Perl	perl
PHP	php	PHP (brief)	php-brief	Python	phyton
Q(uick)BASIC	qbasic	robots.txt	robots	Ruby	ruby
SAS	sas	Scheme	scheme	sdlBasic	sdlbasic
Smarty	smarty	SQL	sql	TCL/iTCL	tcl
T-SQL	tsql	Text	text	VB.NET	vbnet
VHDL	vhdl	Visual BASIC	vb	Visual Fox Pro	visualfoxpro
WinBatch	winbatch	XML	xml

13. Mindmaps

Wikka has native support for mindmaps∞. There are two options for embedding a mindmap in a wiki page.
Option 1: Upload a FreeMind file to a webserver, and then place a link to it on a wikka page:
http://yourdomain.com/freemind/freemind.mm
No special formatting is necessary.
Option 2: Paste the FreeMind data directly into a wikka page:

• Open a FreeMind file with a text editor.
• Select all, and copy the data.
• Browse to your Wikka site and paste the Freemind data into a page.

You can easily paste HTML in a wiki page by wrapping it into two sets of doublequotes.
Examples:
By default, some HTML tags are removed by the SafeHTML parser to protect against potentially dangerous code. The list of tags that are stripped can be found on the Wikka:SafeHTML∞ page.