I had added this to the css
input {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
as you said, but probably in the wrong place. It hid the radio buttons in the form. I took out it out of the css and the buttons are visible now and am getting the errors when trying to complete the purchase.
I moved the
<style type="text/css" media="all">
<!--
@import url("cart.css");
-->
</style>
Below the body tag, but am still getting the errors.