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

For those who have problems with IE and for others too.

{
    float: left;
    width: 1px;
    height: 1px;
    background-color: transparent;
    border: none;
}