SiteOrigin Contact Form widget: multiple columns form

Hey team,

Congratz for the great work and series of widgets, they’re awesome.
However, I have an issue with the Contact Form widget. I created a form I like but I’d love to have it in multiple columns, having name and email field on the same line, the 2 other fields on another line below, and the message field full width. How can I do?

FYI here is my current contact page with the form : http://www.vernedigital.com/contact-us/

Thanks in advance for your help!