reCaptcha slips under Submit button

you probably figured it out by now but move the [recaptcha] after your submit button after all the fields on the form. This worked for me

For other people out there, it isn’t necessary to have the reCaptcha as the last field in the form. Just add a custom class to the field: [recaptcha class:captcha]

And then style the class captcha in your style.css:
.captcha {float:left;}
or you can
.captcha {display: inline-block;}

This is cool, thanks Andreashej, I may need this one day. Problem is I won’t remember where I read it! ??