I think you’re looking for something like this:
div.content2.no-padding.with-actions {
margin-top: 10px;
}
However, it looks like you’re trying to do something different with that part of the user interface that the original template didn’t intend. That panel (with the “no-padding” class) is meant to have no margin or padding and hug right next to the div.header. While the above CSS declaration solves your problem, I think you may want to switch panel styles on that particular form to one with native spacing built in. Just my 2 cents.
Also, you may need to add an additional class to the markup on that div to target it specifically. In that case you’d do something like this:
...
div.content2.no-padding.with-actions.your-additional-class {
margin-top: 10px;
}
