form > div.col-submit {
  text-align: center;
  padding: 20px;
}

form > div.col-submit button {
  border: 1px solid #E4E4E4;
  background: #F04800;;
  font-size: 14px;
  color: #fff;
  padding: 1em;
  display: block;
  width: 100%;
  cursor: pointer;
  border: 0;
  border-radius: 5px;
  text-transform: uppercase;
}

@media(min-width: 800px){
  form > div.col-submit button {
    width: 30%;
    margin: 0 auto;
  }
}

form > div.col-submit button:hover {
  background: #FF6820;
}