Changing Button style on a form via CSS

[Jo_Pitts1]

All,

I'm creating my first Marketo form, and started using the simple form theme, so I could overlay CSS from there.

I've added this into my custom CSS

.mktoForm .mktoButton {

  border: 1px solid #f07d00;

  color: #5e524d; 

}

But for it is having no effect on the button when I do a preview.

What am I missing (given that I am both a marketo n00b and a CSS n00b, I will be missing something!)?

Cheers

Jo