Remove background "Notice" message

[doraj]

Hello,

when I use the default message for guest or I create a new "notice" message between the ACP of vBulletin, I saw a yellow background with a border.

From where can I remove that background/border and make it white?

I use vBulletin 4.1.9

Thank you,
Regards

[ahmed-samara]

Hello,

Admincp >>> Styles & Templates >>> Style Manager >>> Style Variable Editor >>> Serch Variables (Notices) >>> Notice Background