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A ten-home development in Swanson, Auckland ran a promotion with a deadline: buy one of the homes and get a one in ten chance to win the purchase price back. The landing page had to be live quickly, and it had to live inside the WordPress and Divi site they already had.
Hero, availability grid, amenities, countdown and enquiry form in a single Code module. Shadow DOM keeps the theme out. The enquiry form is designed as part of the page but submits through the forms plugin the site already ran, so entries and notifications land exactly where the client’s team already looks.
The promotion had a fixed closing date and a prize worth up to $669,000. The page had to explain an unusual offer clearly enough to be trusted, show which of the ten homes were still available, and carry every enquiry — all inside a WordPress site built on a page builder, without touching the theme.
The developer needed the campaign live quickly on the site they already had. Replatforming for one page would have cost more time than the promotion had, so the constraint was to fit inside WordPress and Divi as they were.
A page builder site accumulates global styles that will eventually reach into anything you add. Shadow DOM ends the argument: the campaign page cannot be restyled by the theme, and cannot break the rest of the site either.
A campaign form posting to its own endpoint means someone has to maintain it, and the sales team loses the entry list and notifications they already know. Designing the form freely while submitting through the existing plugin keeps both.
Every home carries its real status — sold, under contract or available — and the bar in the hero counts them. Enquire on a home and the page scrolls to the form with that home already selected, so the sales team knows which one the enquiry is about without asking. It has been kept accurate since launch: nine of the ten are now gone.
The form is part of the page rather than an embed dropped into it — the campaign’s palette and typography, and a home selector the page fills in for you when you click Enquire on a specific home. Underneath, it submits through the WPForms setup the site already ran, so entries, notifications and the sales team’s workflow stay exactly where they were. No new plugin, no custom endpoint, and nothing extra to maintain once the promotion closes. Making that relay pass the plugin’s own bot checks took some working out — that part is in the FAQ.
The constraint was the brief: whatever we built had to be droppable into the existing site, removable when the promotion ends, and impossible for the theme to break in the meantime.
The site is a live WordPress build on Divi and could not be rebuilt for one campaign. So the page had to be something Divi could hold: one Code module dropped onto an existing page.
The markup mounts inside a Shadow DOM host, so no theme or plugin stylesheet can reach it and nothing it does leaks back out. We proved it first against a deliberately hostile stylesheet.
Rather than posting to our own endpoint, the custom form relays into a hidden WPForms form, so entries, notifications and nonces behave exactly as the client's team already expects.
Statuses, the countdown and the availability bar are updated as the client reports sales — the page has been revised repeatedly since launch rather than left to go stale.
The page has been revised repeatedly since launch as homes sold — a campaign page is only useful while what it says is still true.
9 of 10
As of 1 September 2026 one home is left from the ten in the draw. The page is the campaign's enquiry surface, not its only sales channel — but it carried the offer, the countdown and every enquiry.
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Hero, homes grid, amenities, countdown and enquiry form all ship as a single Divi Code module dropped onto an existing page — nothing else on the site had to move.
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The page uses the forms plugin, media library and page builder the site already had. When the promotion ends the module can be deleted and nothing else on the site changes.
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Because the submission was relayed into a hidden WPForms form, and two of its protections treat that as bot behaviour: modern anti-spam protection and minimum time to submit. When either trips, WPForms deliberately returns a success response and shows the confirmation while discarding the submission — a fake success designed to stop bots learning they were caught. Turning both off for that form fixed it. This is the same class of silent failure we found on another WordPress site, from a different plugin.
Yes. A full custom page can ship as a single Divi Code module on an existing page, with no theme edits, no child theme and no new plugins — the approach we use for WordPress support and web design work on sites we did not originally build.