How to make fields required on the contact form? When using the Pixel &amp; Tonic contact form (https://github.com/pixelandtonic/ContactForm) how do you make the fromName field required?

When using the form as seen on github, only the message and email field are required.

Thank you!
You could also hand this over to HTML since it supports form validation as of version 5.
Depends on your browser support requirements though. This is what “Can i use” says.