Topscroll Expand is a responsive high impact format that appears in three distinct states. By default, the format appears as a 30% height Topscroll. On interaction (eg mouse hover), the format expands to take up 70% of the screen height. When the user scrolls down the page, the whole format collapses down to a 10% height sticky banner at the top of the screen. This template allows for the easy creation of a Topscroll Expand creative, using a few simple assets.
Examples
Recommended asset dimensions
Dimensions for each state are roughly as follows (based on a 2560x1440 resolution):
- Default: 2560x432px (30% height)
- Expand: 2560x1008px (70% height)
- Sticky: 2560x144px (10% height)
Background(s):
- The template supports either using one background asset (JPG or MP4) across all three states, or using individual background assets for each state.
- If using a single asset for all states, create a background asset using the dimensions for the largest state (Expand).
- If using individual background assets, create one for each state using the three dimensions above.
- The background asset may appear cropped dependant on screen size or resolution, so avoid placing any critical content on it - instead use the overlays to contain your branding and messaging.
Overlays:
- Each state uses a separate overlay asset (PNG with a transparent background), which are swapped when the banner transitions from one state into another. As with many of our templates, the specific dimensions of the overlay assets are flexible, here are some suggested overlay dimensions for each state:
- Default: 2000x460px
- Expand: 2000x800px
- Sticky: 2000x120px
With this image-only template for topscroll expand, various sizes and dimensions for transparent overlays can be used, the final width and anchor positioning can be customised within the template. The sizes above are just an example if it is wished to respect the horizontal/rectangular space, but there's no limitation in uploading a square asset either.
Format description and guidance
The background asset (image or video) fills the entire format background. If separate background assets are not required for any of the states, then just leave them blank and the default state background will be used instead.
For each state, upload an overlay asset containing your brand elements. The overlays should be used for the logo, headline, CTA, and any other brand elements that you need to always be visible. The content of the overlay will be centred within the available space, with a 10% margin added around all sides.
The overlays can be customised in the following ways:
- width (as a percentage of the total screen size). The default width is 80%.
- vertical and horizontal alignment (top, center, bottom & left, center, right).
Desktop Topscroll Expand (Image Only)
We recommend exporting your image assets at x2 for better quality resolution.
Max total file weight
3.5 MB
For best performance, all assets should be compressed and optimized to the lowest possible file weight. We recommend using tinypng.com to compress overlays.
Click tags and tracking
The format template supports one clicktag & impression tracker.
Audio
No
Template Details
Automatically synced on 2026-02-11T14:27:19.642Z. This section documents the canvases, banner templates, and trafficking controls directly from the source configs.
Canvases: Desktop Topscroll Expand
Banner templates: Topscroll Expand Image Only Template
Use the tables below to configure the linked banner templates. Each parameter definition is pulled straight from the template config, ensuring the spec always documents the latest functionality.
Topscroll Expand Image Only Template
Template for Topscroll Expand · Version 1.0.3
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Click URL | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | Required |
Default State
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Default Background Colour | This is the background colour of the default state. It applies if no background image is set. | #ffffff | |
| Default Background Image | This is the background image of the default state. If set, it will override the background colour. If other backgrounds are not set, this will be used. | ||
| Default Overlay Image | Upload the overlay asset (JPG, PNG, or WEBP). Overlays render with object-fit: contain, so they will not crop and do not require extra safe-zone padding. | ||
| Default Overlay Width | This is the width of the content overlay in the default state. | 80% | choices: 60%, 70%, 80%, 90% | |
| Default Overlay X Alignment | This is the horizontal alignment of the overlay in the default state. | center | choices: left, center, right | |
| Default Overlay Y Alignment | This is the vertical alignment of the overlay in the default state. | center | choices: top, center, bottom |
Expand State
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Expand Background Colour | This is the background colour of the expanded state. It applies if no background image is set. | #ffffff | |
| Expand Background Image | This is the background image of the expanded state. If set, it will override the background colour. | ||
| Expand Overlay Image | Upload the overlay asset (JPG, PNG, or WEBP). Overlays render with object-fit: contain, so they will not crop and do not require extra safe-zone padding. | ||
| Expand Overlay Width | This is the width of the content overlay in the expanded state. | 80% | choices: 60%, 70%, 80%, 90% | |
| Expand Overlay X Alignment | This is the horizontal alignment of the overlay in the expanded state. | center | choices: left, center, right | |
| Expand Overlay Y Alignment | This is the vertical alignment of the overlay in the expanded state. | center | choices: top, center, bottom |
Sticky State
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Sticky Background Colour | This is the background colour of the sticky state. It applies if no background image is set. | #ffffff | |
| Sticky Background Image | This is the background image of the sticky state. If set, it will override the background colour. | ||
| Sticky Overlay Image | Upload the overlay asset (JPG, PNG, or WEBP). Overlays render with object-fit: contain, so they will not crop and do not require extra safe-zone padding. | ||
| Sticky Overlay Width | This is the width of the content overlay in the sticky state. | 80% | choices: 60%, 70%, 80%, 90% | |
| Sticky Overlay X Alignment | This is the horizontal alignment of the overlay in the sticky state. | center | choices: left, center, right | |
| Sticky Overlay Y Alignment | This is the vertical alignment of the overlay in the sticky state. | center | choices: top, center, bottom |