A template for the Seamless Skin format, that allows for the easy creation of a responsive scrolling skin creative, with three setsstrong> of backgrounds and overlays that transition as you scroll. You can use either images or videos as backgrounds.Overlaysin the side panels are used to ensure branding and messaging always remain fully visible. When used in conjunction with the Skin Top with Sticky Streaming Video top banner, the format also supports sticky video playback, so the video can remain in view after the top banner scrolls away.
Guide to skins
- The difference between our Seamless Skin & Fluid Skin formats
- The respective templates (i.e. Seamless Image Skin, Seamless Sliding Skin, Fluid Skin Image, Fluid Skin Video, etc.) within our Seamless & Fluid Skin formats
- Tips and best practice for using overlays
Examples
Adore (Circular Wipe)
Admire (Vertical Wipe)
Advance Technology (Horizontal Wipe)
Advantage (Fade)
Asset Specs
Backgrounds
Three of either:
- Image: 2560x1440px (JPG, PNG or WEBP)
- Video: 1920x1080px (MP4)
Overlays:
- Main overlays - Max size of 800x1440px (PNG or WEBP with transparent background), one asset for each side of the skin, and one set of overlays for each background, so up to 6 main overlay assets in total.
- Top/Bottom overlays (optional) - additional static overlay elements that are top/bottom aligned with the overlay container, on both sides of the skin. Max size of 800x500px (PNG or WEBP with transparent background). Static overlays are consistent across all 3 sets of skin assets, so only up to 4 top/bottom overlay assets are required in total.
- For best results, export overlay PNG assets without any excess empty space - the size and position of the overlay is configurable within the skin settings.
Sticky Video
- Sticky video can be enabled when paired with the Skin Top with Sticky Streaming Video top banner.
Top Banner
- Top Overlay:
Maximum size of 1000x180px* (PNG with transparent background)
Top banner sizes vary across publishers and between countries, so please read carefully to ensure your assets are produced correctly.
For HTML5 Top Banners, the creative width should be responsive (width: 100%) up to a maximum width of 1280 pixels. The height will match the billboard height from the list below. If the width of your top banner is not responsive, there may be empty space visible between the top banner and side panels on some sites.
Billboard placement sizes by country:
- 🇦🇹 AUT: 1000x250px
- 🇨🇭 CHE: 1000x250px
- 🇩🇪 DEU: 1000x250px
- 🇩🇰 DNK: 930x180px
- 🇫🇮 FIN: 1000x400px
- 🇫🇷 FRA: 970x250px
- 🇮🇹 ITA: 1000x250px
- 🇲🇽 MEX: 970x250px
- 🇳🇱 NLD: 970x250px
- 🇳🇴 NOR: 980x300px
- 🇵🇱 POL: 970x250px
- 🇸🇪 SWE: 1000x240px
- 🇬🇧 GBR: 970x250px
Top banner dimensions can also vary from publisher to publisher. You should always confirm specs with the publishers on your plan before creating skin assets.
Format description and guidance
A template that allows for the easy creation of a "scrolling skin" creative. The format allows three sets of assets (background image/video + side overlays) to be uploaded, with an interactive scroll triggered transition as the user scrolls down the page.
Avoid placing any text or logos on the sides or edges of the background assets, as they could appear cropped on smaller screen sizes. All "key" static elements or artwork (logos, messaging, CTA etc) should be implemented as part of the overlay assets.
Use the overlays to add your branding and messaging elements on top of the background. The overlays automatically scale and resize your content to fit within the available space, enabling responsive functionality for your skin. You can define the overlay container width & height (as a percentage of the total side-panel area) , as well as define minimum and maximum widths (in pixels) to constrain their scaling.
The main overlay is the primary overlay asset, which will fill as much space within the overlay container as is available. Optional top and bottom overlays can be added on each side, allowing for static branding elements such as logos and CTAs to be placed separately from the main overlay, allowing for more advanced responsive layouts. The top/bottom overlays will match the full overlay container width, and you can adjust their heights to control how big they will appear
You can additionally configure how the overlays are positioned within the skin side-panels. By default they are centered, however you can modify the horizontal and vertical alignment of the overlays using the preset positioning options, and add an offset to fine-tune the position (you can use any valid css unit eg 250px, 50%, 20vh etc, measured from the selected position edge).
For best results, export the overlay PNG assets without any excess empty space - this allows the template to handle the overlay scaling and placement more effectively.
Sticky video and the side overlays. When the creative is paired with the Skin Top with Sticky Streaming Video top banner, the video moves into the side panel once the top banner scrolls out of view. The Overlay Behaviour setting controls what the side overlays do while that player is on screen:
- Overlap (default) – the player is drawn on top of the overlays. Nothing moves, but the player can obscure overlay content on shorter screens.
- Resize While Sticky – the overlay container shrinks to the space the player leaves while it is on screen, and returns to full size when playback is handed back to the top banner.
- Always Reserve Space – that reduced overlay area is kept at all times, so nothing moves as the user scrolls.
Both reserving modes scale the overlays down rather than cropping them, so design overlay artwork to stay legible at around two thirds of its full height. The Overlay Container Gap sets the minimum space kept between the player and the overlays. Overlap is the default, so a creative only behaves differently once this is changed.
Max total file weight
3.5 MB.
If you use skin background videos, keep clips to roughly 10-15 seconds where possible to minimise compression and quality issues.
For best performance, all assets should be compressed and optimised to the lowest possible file weight. We recommend using tinypng.com to compress PNG overlays.
Click tags and tracking
The template supports four individual clickURL & trackers - one for each of the skin backgrounds, and another for the top banner.
Audio
No
Template Details
Seamless Scrolling Streaming Video Skin
General
| Parameter | Purpose | Default |
|---|---|---|
| Default Click URL | Click destination used unless a skin sets its own Click URL. | |
| Transition Style | Sets how one skin gives way to the next as the page scrolls. Vertical Wipe peels the skin away from the bottom edge upwards, and is the original effect. Horizontal Wipe uncovers the next skin from the right edge across to the left. Circular Wipe grows the next skin out from the centre of the banner. Fade dissolves one skin into the next. | Vertical Wipe | choices: Vertical Wipe, Horizontal Wipe, Circular Wipe, Fade |
| Show Transition Shadow | When enabled, the edge of the transition casts a soft drop shadow over the skin beneath it. | True | choices: True, False |
Skin 1
| Parameter | Purpose | Default |
|---|---|---|
| Click URL (optional) | Falls back to the Default Click URL when blank. | |
| Background (Image) | Image asset used as the background. Add only an image or a video, not both. | |
| Background (Video) | Streaming video asset used as the background. Add only an image or a video, not both. | |
| Left Main Overlay | Left main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Right Main Overlay | Right main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Background Anchor Point | Sets where the background is anchored when it is scaled to fill the panel. | top-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right |
| Background Colour | Colour shown wherever this background does not cover the skin. | #000000 |
Skin 2
| Parameter | Purpose | Default |
|---|---|---|
| Click URL (optional) | Falls back to the Default Click URL when blank. | |
| Background (Image) | Image asset used as the background. Add only an image or a video, not both. | |
| Background (Video) | Streaming video asset used as the background. Add only an image or a video, not both. | |
| Left Main Overlay | Left main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Right Main Overlay | Right main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Background Anchor Point | Sets where the background is anchored when it is scaled to fill the panel. | top-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right |
| Background Colour | Colour shown wherever this background does not cover the skin. | #000000 |
Skin 3
| Parameter | Purpose | Default |
|---|---|---|
| Click URL (optional) | Falls back to the Default Click URL when blank. | |
| Background (Image) | Image asset used as the background. Add only an image or a video, not both. | |
| Background (Video) | Streaming video asset used as the background. Add only an image or a video, not both. | |
| Left Main Overlay | Left main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Right Main Overlay | Right main overlay asset for this skin, using as much space as is available within the overlay container. | |
| Background Anchor Point | Sets where the background is anchored when it is scaled to fill the panel. | top-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right |
| Background Colour | Colour shown wherever this background does not cover the skin. | #000000 |
Static Overlays
| Parameter | Purpose | Default |
|---|---|---|
| Top Overlay (optional) | Optional overlay anchored to the top of the overlay container. | |
| Left Top Overlay Height | Sets the height of the left top overlay when Left Side Overlays use their own assets. | 15% |
| Bottom Overlay (optional) | Optional overlay anchored to the bottom of the overlay container. | |
| Left - Bottom Overlay Height | Sets the height of the bottom overlay as a percentage of the overlay container (px, vw and vh also accepted). | 10% |
| Top Overlay (optional) | Optional overlay anchored to the top of the overlay container. | |
| Right - Top Overlay Height | Sets the height of the top overlay as a percentage of the overlay container (px, vw and vh also accepted). | 15% |
| Bottom Overlay (optional) | Optional overlay anchored to the bottom of the overlay container. | |
| Right - Bottom Overlay Height | Sets the height of the bottom overlay as a percentage of the overlay container (px, vw and vh also accepted). | 10% |
Background Settings
| Parameter | Purpose | Default |
|---|---|---|
| Scaling Mode | Sets how the background scales. Cover fills the area and may crop. Contain shows the whole asset and may leave empty space. None keeps the intrinsic size. | cover | choices: cover, contain, none |
| Max Video Stream Weight | Sets the maximum stream weight for the background video. With more than one background video the budget is split between them, and the skin and top banner together must stay within platform limits. | 2.5mb | choices: 3.5mb, 3.0mb, 2.5mb, 2.0mb, 1.5mb, 1.0mb |
Overlay Container
| Parameter | Purpose | Default | Notes |
|---|---|---|---|
| Overlay Container Width | Sets the width of the overlay container as a percentage of the side panel width. | 80% | Required |
| Overlay Container Height | Sets the height of the overlay container as a percentage of the skin height. | 90% | Required |
| Overlay Container Gap | Sets the minimum space kept between the overlays, and between the sticky video player and the overlays. | 1vh | |
| Overlay Container Minimum Width | Sets a minimum width for the overlay container, so the overlays do not become too small on narrow screens. | 120px | |
| Overlay Container Maximum Width | Sets a maximum width for the overlay container, so the overlays do not become too large on wide screens. | 300px | |
| Hide Overlays Below Minimum Width | When enabled, hides the overlays whenever the overlay container is narrower than its minimum width. | False | choices: False, True | |
| Hover Effect | Sets the effect applied to the overlays when the pointer hovers over the side panel (desktop only). | scale | choices: disabled, glow, scale, glow & scale | |
| Overlay Container Horizontal Alignment | Sets the horizontal alignment of the overlay container and every overlay within it. | center | choices: center, inside, outside | |
| Overlay Container Horizontal Offset (optional) | Sets a horizontal offset for the overlay container away from its aligned edge (px, %, vw). | ||
| Overlay Container Vertical Alignment | Sets the vertical alignment of the overlay container and every overlay within it. | center | choices: top, center, bottom | |
| Overlay Container Vertical Offset (optional) | Sets a vertical offset for the overlay container away from its aligned edge (px, %, vh). |
Advanced Overlay Settings
| Parameter | Purpose | Default |
|---|---|---|
| Main Overlay Layout | Inset fits the main overlay into the space left by the top and bottom overlays, inside the overlay container. Full Bleed fills the whole side panel with the main overlay, ignoring the overlay container's width and height, and draws the top and bottom overlays on top of it. | Inset | choices: Inset, Full Bleed |
| Main Overlay Scaling Mode | Sets how the Full Bleed main overlay fills the side panel. Contain shows the whole asset. Cover fills the panel and may crop. Fit to Width matches the panel width and may run past the top or bottom. Fit to Height matches the panel height and may run past the sides. Ignored in the Inset layout. | contain | choices: contain, cover, fit to width, fit to height |
| Main Overlay Horizontal Alignment | Sets the horizontal alignment of the Full Bleed main overlay within the side panel. Ignored in the Inset layout. | center | choices: center, inside, outside |
| Main Overlay Vertical Alignment | Sets the vertical alignment of the Full Bleed main overlay within the side panel. Ignored in the Inset layout. | center | choices: top, center, bottom |
Sticky Video Player
| Parameter | Purpose | Default |
|---|---|---|
| Video Side | Sets which side panels show the sticky video player when the top banner scrolls out of view, or disables the handoff. | left | choices: left, right, both, disabled |
| Video Transition | Sets the transition animation used when the sticky video player appears. | Slide In | choices: Disabled, Slide In |
| Position | Sets the vertical position of the sticky video player within the side panel. | top | choices: top, middle, bottom |
| Max Height | Sets the maximum height of the sticky video player. Match Top Banner Height copies the height of the top banner. | Match Top Banner Height | choices: Match Top Banner Height, 200px, 250px, 300px, 350px, 400px |
| Vertical Offset | Sets an additional vertical offset from the chosen position (px, %, vh). | 0 |
| Overlay Behaviour | Controls how the side panel overlays react to the sticky video player. Overlap keeps the original behaviour, where the player is drawn on top of the overlays and can obscure them on some screens. Resize While Sticky shrinks the overlay container to the space left by the player while it is on screen, and restores it when the player hands playback back. Always Reserve Space keeps that reduced overlay area at all times, so nothing moves as the user scrolls. The Overlay Container Gap sets the minimum space kept between the player and the overlays. | Overlap | choices: Overlap, Resize While Sticky, Always Reserve Space |