select dropdown in custom html

Hi,

I have a form where among other fields there is a custom html field that contains html for a dropdown box . The dropdown box has a list of countries of the world. I did not use the joget select box because did not want to write one by one the country names.

But i need to make this field mandatory. I wrote below code in custom html to make it mandatory. But if user does not choose a country from the dropdown box and submits the form, the process hangs(just show Please wait....).

<select id="country" name="country" required >

Please help what can I do in this case?

Thanks