Change FormFunction button color

Question

Simple question. How can I change the FormFunction submit button color? It's possible to do that?

I didn't find any way to do that in the documentation.

The close I got was using PageTheme option, but there are just 4 pre-defined options.

Answer 1

You can inspect elements of interest and add css with EmbeddedHTML:

CloudDeploy[
  FormFunction[{
      EmbeddedHTML["<style> .btn.btn-primary.form-submit{background: #000080;}</style>"],
      "first" -> "String", 
      "second" -> "Number"
    }, 
    f
  ], 
  Permissions -> "Public"
]