Submitting a form by pressing enter without a submit button

Question

Well I am trying to submit a form by pressing enter but not displaying a submit button. I don\'t want to get into JavaScript if possible since I want everything to work on a

Answer 1

I've used:

and:

 .hidden {
        border:0;
        padding:0;
        font-size:0;
        width: 0px;
        height: 0px;
    }

in the .css file. It worked magically for me too. :)