Indention Help

Hi,

I use the "indent more" and "indent less" buttons to separate and emphasize text in the HTML emails I create; however, when I send a sample to myself, the indention disappears and it blends in with the normal left hand beginning of other text. When previewing in Marketo, it shows the indention but not in my sample test emails.

Has this happened to anyone else or is there an obvious solution I am missing?

Thanks.