Outlook Signature Template with html and in-line styling
For more details on how to set your HTML Signature in Outlook Exchange: https://docs.microsoft.com/en-us/microsoft-365/admin/setup/create-signatures-and-disclaimers?view=o365-worldwide
Additional Tips: Outlook Exchange Disclaimer has a limited amount of characters. So you might need to compress your html code by removing the breaklines and blanks.