MktoForms2 :: Customize Button (TBK)

HTML

<script src="//app-sj01.marketo.com/js/forms2/js/forms2.min.js"></script>
<form id="mktoForm_148"></form>
<script>MktoForms2.loadForm("//app-sj01.marketo.com", "410-XOR-673", 148)
</script>

CSS

.mktoForm span.mktoButtonWrap.mktoSimple button[type="submit"].mktoButton {
  width: 12em;
  background-color: darkslateblue;
  background-image: none;
  border: none;
  height: 3em;
  font-size: 24px;
  border-radius: 4px;
}