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Google reviews widget on Wix: how tall the HTML box has to be

28 July 2026 · JustReview

Wix puts pasted code inside an iframe with a height you set by dragging, and that iframe never grows to fit what is inside it. So the only number that matters when you add reviews to a Wix page is how tall the widget actually renders. We measured ours: 827 px of content in a box 980 px wide, 932 px in a 320 px mobile box, and the counter intuitive part, a narrower box needs a taller one.

Everything below is a measurement, taken on 28 July 2026 in headless Chromium, with the snippet our dashboard generates loaded inside a cross origin iframe, which is exactly what a Wix HTML box is.

Two ways into a Wix page, and they are not equal

The embed wins on the things that are expensive to change later, which is where your reviews live and what happens to them when you stop paying somebody. It loses on convenience, and it loses in exactly one place: you have to decide the height yourself. That is a five second job once somebody hands you the number, which nobody does, so here are ours.

The measured heights

Box width is the width of the HTML element on your Wix canvas. Widget height is what the widget renders at that width. Box height is what you should type into the Wix size panel: the widget plus the 16 px that the browser default body margin costs inside the iframe, rounded up.

Two things in that table are worth more than the numbers themselves.

The height goes up as the box gets narrower. 827 px at 980 px wide, 932 px at 320 px. Most people size the box on a desktop canvas, then check the phone, find the widget clipped, and blame the mobile layout. The layout is fine. The widget is taller down there, so the mobile box needs its own height, about 100 px more than the desktop one.

A 980 px box shows two reviews, a 1200 px box shows three. Card width is decided by CSS breakpoints, so those 60 px of extra canvas buy a whole extra review card. If your Wix section is close to that line, widening it is the cheapest content upgrade on the page.

Where the pixels go

The same widget, broken into its parts. This is why the narrow boxes are the tall ones.

The slider block is a constant 554 px, because the review card is 444 px tall at every width we tested. The margins are a constant 124 px. The only part that moves is the banner at the top, the one that asks visitors whether they would recommend you and collects a review from them: 85 px when it has room for one line, 190 px when the text wraps into a narrow phone box. That banner is an Ultimate plan feature, so on a lower plan the widget is shorter by exactly those numbers and your box can be 85 to 190 px smaller.

Two more levers, measured at 980 px wide:

• Turning the All reviews button off takes the widget from 827 px to 723 px. Worth it only if you already have reviews somewhere else on the site, because that button is what turns a decorative widget into a page people click through.
• Switching from the slider to the grid layout takes it to 5058 px, because a grid draws all twenty reviews instead of sliding through them. In a Wix box that is not a taller widget, it is a clipped one. If you want the grid, put it on a dedicated reviews page, not in a fixed height box in the middle of a home page.

The mobile number is the one that decides your layout

932 px on a 320 px wide box is about 1.4 times the visible height of a phone screen. A visitor scrolling your Wix page will meet the widget, scroll a full screen inside it, and only then reach whatever you put next. That is fine on a page whose job is trust, and it is a bad trade in the middle of a booking flow.

So on mobile there are three sane choices, in the order we would try them:

1. A compact rating summary where a slider would eat the screen: one number, the stars and the count. It is the same review data in about a tenth of the height.
2. A floating badge, which sits in the corner and costs no layout height at all.
3. The full slider, but lower on the page, below the primary call to action rather than above it.

All the widget shapes and what each one is for are on the Google reviews widget page, so you can pick the shape before you fight with the box.

Doing it, in the order you will actually do it

1. Build the widget in your dashboard and generate the code. You get three parts: the stylesheet and script, the settings block, and the container div.
2. In the Wix editor, add an Embed Code element, choose the HTML mode, and paste all three parts into that one box. This is where Wix differs from most platforms: there is no site wide code field to split them across, everything lives together in the box.
3. Set the box width to the width of your section, then set the height from the table above.
4. Publish. The widget does not render in the Wix editor preview, so the live page is the only verdict that counts.
5. Switch to the mobile editor and set the mobile height separately.

The click by click version with screenshots is in our Wix install guide. If your widget renders but sits in a box that is visibly too short, you now know it is step 3 and not step 2.

Why we would put our own widget in that box

Because nothing about it meters your traffic. Several widget tools count monthly widget views and switch the widget off when you pass the limit, which on a Wix site with reviews in a repeated section means the meter runs on every page view you have. We never count views, on any plan, including the free one, and the pricing page says so in the same words. We compared the seven main tools on exactly this point in best Google reviews widget in 2026.

The rest is what the measurements above show: one stylesheet, one script, six widget shapes that all read from the same connected sources, and a widget that renders inside a third party iframe without a build step or an app install. You can create an account and generate the snippet in the time it takes to find the Embed Code element in the Wix editor.

Two honest caveats. On Ultimate the review collection banner adds 85 to 190 px to the widget, so the plan you are on changes the box height you should set. And because Wix runs the box in an iframe, the widget cannot inherit your site fonts, so brand matching happens in the widget settings rather than in your Wix theme.

If you want reviews on a Wix page today: connect a source, generate the Testimonials snippet, paste it into an Embed Code element, and set the box to 850 px on desktop and 950 px on mobile. That is the whole job, and it is the last time you will have to guess a height.