Eventhough the signature rules have now exsisted for a long time, I see a lot of people who doesnt follow them. The rules were made to followed.
heres the basics of the rules.
Animations are not allowed in the signature
Text only signatures may have a maximum of six (6) lines of text (including blank lines), assuming the default font size or smaller. Larger font sizes means that fewer lines are allowed.
Your signature can be no bigger than 210x600 pixels. ( text not allowed )
Your signature can be 170x 600 ( 3 lines of text allowed ) smaller sizes
Your combines signature size can not exceed 210x600 pixels.
If you dont know the signature rules please read them.