coloured text
<font color=FONT HERE>text here</font>

 

Font text
<FONT FACE="Font here">text here</font>

 

centered text
<center>text here</center>

 

bold text
<b>text here</b>

 

italicised text
<i>text here</i>

 

marqueed text
<marquee>text here</marquee>

 

underline
<u>text here</u>

 

strikeout
<s>text here</s>

 

small text
<small>text here</small>

 

big text
<big>text here</big>

^Superscript
^{text here}
_Subscript
_{text here}

fixed width text (typewriter)
<tt>text here</tt>

Heading size 1

<h1>text here</h1>

Heading size 2

<h2>text here</h2>

and so on...