Mixing HTML with Page Builder

We are going to use Zendesk dropbox to put a Submit Ticket box on our standard Page Builder Contact Us page.

But it looks like Zendesk Dropbox is only available as HTML code — not as a Widget or Shortcode. I tried pasting the code into a text/HTML widget, but it doesn’t work. Nothing appears in that location.

How would I paste HTML code into a Page Builder?

@import url(//assets.zendesk.com/external/zenbox/v2.6/zenbox.css);

if (typeof(Zenbox) !== “undefined”) {
Zenbox.init({
dropboxID: “20149264”,
url: “https://bellaoutdoorliving.zendesk.com”,
tabTooltip: “Support”,
tabImageURL: “https://assets.zendesk.com/external/zenbox/images/tab_support.png”,
tabColor: “black”,
tabPosition: “Left”
});
}