[Solved]Font size in signature

[3kP0mR]

I want to change the font size in my signature to attract more donation on this forum. It doesn't work for me.
But I see larger font signature all the time e.g https://bitcointalk.org/index.php?topic=81357.0

Why?

Code:

***** [url=https://bitcointalk.org/index.php?topic=94865.msg1049751" target="_blank] [color=blue] [size=18]Donations needed to fight internet censorship[/size] [/color] [/url] *****