Call to action button

First off, allow me to thank you for making this wonderful theme available. I am using it for which is my documentary film on the sport of lawn mower racing. I was messing with the default call to action anchor and now I can’t remember what it was. I thought it was #preview but that doesn’t seem to work. Can you let me know what it is?
Thank you,

I found out that it was #primary. Thanks again.