Yahoo CEO Mayer: 'It's God, family and Yahoo - in that order'

In a rare public appearance, new Yahoo CEO Marissa Mayer harkened back to her Wisconsin roots -- specifically, famed Green Bay Packers coach Vince Lombardi -- in outlining her life priorities.

"Vince Lombardi says, 'In my life there are three things: God, family and the Green Bay Packers, in that order,'" Mayer told Fortune Magazine editor-at-large Pattie Sellers at a special event Tuesday night. "I think for me that it's God, family and Yahoo -- in that order."

Mayer, a former vice president at Google, became Yahoo's head this past July and gave birth to her son slightly over two months later. She is part of a record-setting wave of female chief executives: 18 women in charge of Fortune 500 companies, up from 12 last year.

However, she said, navigating the transitions into her roles as both a CEO and mother haven't been a problem.

"The baby's been easy," she said. "The baby's been way easier than everyone made it out to be. And I think I've been really lucky that way, that I had a really easy, healthy pregnancy. He's been easy, and those have been the two really terrific surprises: that the kid has been easier and the job has been fun."

One key, she noted, was "ruthlessly" prioritizing her time.

"That's why I haven't been talking [publicly]," she explained. "And I'm gonna go back to not talking for awhile after tonight, because I've been really internally focused."

Watch Mayer discuss life at Yahoo in this clip, posted Wednesday by CNN, below.