changing font size
<font size=NUMBER>TEXT HERE</font>

changin the font style
<font face="FONT">TEXT HERE</font>

changing font color size and face all in one code
<font face="FONT" size=NUMBER color=COLORHERE>TEXT HERE</font>

TO Give your text different effects

To Align ur writing
<p align=DIRECTION>TEXT</p>

To give your text a bacground
<span style=background:COLOR>TEXT HERE</span>

To make your font glow
<span style="width: 50; height: 20; font-size: 10pt; font-family:FONT NAME; color: #COLOR CODE; filter: glow(color=#COLOR CODE, strength=NUMBER)">UR TEXT</script>
u can change the glow to dropshadow or shadow ... change the color to wutever color you want and for the strength put a number between 1-10