Inline Video Expand is an autoplaying video format that appears inline within the page content. You can choose to either upload your own MP4 file, or else use a VAST tag as the source of the video. An optional overlay can also be used to add static brand elements (such as a logo or CTA) on top of your video.
By interacting with the creative (hovering for 3 seconds or clicking), users can launch a full screen "expand", which can load additional rich content (such as a full-video trailer with audio, or a microsite).
Examples
Format Specs
Autoplay Content
Video
1280x720 (16:9) MP4 (Optimised for web)
OR VAST 4.0 Compatible Tag
Max duration 30 seconds. Audio buttons and other click-events are not available on autoplay content, as clicking anywhere on the banner will launch the expand.
Overlay (Optional)
1280x720 (16:9) PNG with transparent background
Endframe (Recommended)
1280x720 (16:9) JPG or PNG
Expand Content
Video (1920x1080 or 16:9), HTML5 Zipfile or embedded microsite.
Expand dimensions are roughly 90% of the window width, and 80% of the height. Expand content must be responsive, to ensure it can resize and adapt to fit different screen shapes and sizes.
If "expand mode" is set to "hover", the combined file weight of the autoplay + expand content must not exceed 3.5MB. If "expand mode" is set to "click", the limit is not as strict, and the creative may load up to an additional 20MB of expand content.
Format description and guidance
Inline Video is a high impact auto-playing video format that appears midway down the page (mid-content). The format accepts either an MP4 video, or a VAST tag as a source. An optional overlay can be used to add static brand elements on top of the video. It is strongly recommended to include a static endframe to safeguard against suspended auto-play. Read more about endframes here and ensure your ad never appears blank!
For the expand content, you may choose to use either an additional video, a custom HTML5 creative zip file, or embed your own website/microsite within an "external content" iFrame.
Click URL
Click URL should be added to your expanded content.
Max total file weight
Video: Files up to 50 MB are accepted, with a recommended maximum length of 20 seconds.
Image: Maximum 200kb.
Audio
User-initiated
Template Details
Automatically synced on 2026-02-11T14:27:19.602Z. This section documents the canvases, banner templates, and trafficking controls directly from the source configs.
Canvases: Desktop Inline Video Expand, Mobile Inline Video Expand
Banner templates: Inline Video Universal Player, Video Streaming, Video Streaming with Overlays
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.
Inline Video Universal Player
This player is designed for the outstream format, and can play either a VAST tag or an MP4. · Version 1.0.1
Warning: Inline Video Universal Player is archived and no longer actively maintained. Recommended alternative: Video Streaming.
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| 0.0 Click URL | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| 1.0 Video Source Type | Select the 1.0 video source type option from the list to control how the template behaves. | MP4 | choices: MP4, VAST | |
| 1.1.1 Video MP4 | Provide the 1.1.1 video mp4 video in MP4 or WEBM format, encoded for autoplay and kept under the maximum weight. | ||
| 1.1.2 VAST Video tag | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| 2.0 Video Fit | Select the 2.0 video fit option from the list to control how the template behaves. | Letterbox | choices: Letterbox, Pillarbox, Fit | |
| 2.1 Video Alignment | Select the 2.1 video alignment option from the list to control how the template behaves. | Center | choices: Top, Center | |
| 2.2 Audio | Select the 2.2 audio option from the list to control how the template behaves. | Enabled | choices: Enabled, Disabled | |
| 2.3 Background Colour | Hex colour (#RRGGBB or #RRGGBBAA) applied to this element. Use it to match brand palettes and overlay blends. | #000000 | |
| 3.0 Endframe Settings | Select the 3.0 endframe settings option from the list to control how the template behaves. | Disabled | choices: After Video, Before Video, Before and After video, Disabled | |
| 3.1 Endframe Image | Upload the 3.1 endframe image asset (JPG, PNG, or WEBP). Follow safe-zone guidance and stay within the platform file-size limits. | ||
| 1.3 Overlay Image (optional) | 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. |
Video Streaming
Responsive video banner, with optional overlays. · Version 2.0.1
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Click URL | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| Video Asset | Provide the video asset video in MP4 or WEBM format, encoded for autoplay and kept under the maximum weight. |
Video Settings
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Max Video Stream Weight | Sets the maximum allowed video stream weight used when selecting available encodes. | 3.5mb | choices: 3.5mb, 3.0mb, 2.5mb, 2.0mb, 1.5mb, 1.0mb | |
| Scaling Mode | Sets the scaling behaviour of the video. Letterbox and Pillarbox add space. Cover may crop. Contain avoids cropping. Original Size keeps intrinsic dimensions. | Letterbox | choices: Letterbox, Pillarbox, Cover, Contain, Original Size | |
| Video Position | Anchor Point used to position the video within the banner. | mid-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| Audio | Enables or disables video audio. | Enabled | choices: Enabled, Disabled | |
| Audio Button Position | Sets the position of the audio control button. | top-right | choices: top-left, top-right, bot-left, bot-right |
Background Settings
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Background Type | Selects how the background behind the video is generated (auto extraction, custom image, colour fill or blurred video). | Auto Background | choices: Auto Background, Custom Image, Custom Colour, Blurred Video | |
| Background Image | Image used when Background Type is set to Custom Image. | ||
| Background Colour | Colour used when Background Type is set to Custom Colour or to fill letterboxed areas. | #FFFFFF |
Endframe (optional)
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Endframe Image | Image displayed for the endframe when enabled. | ||
| Endframe Settings | Selects when the endframe appears relative to the video (before, after, both or disabled). | Disabled | choices: After Video, Before Video, Before and After video, Disabled | |
| Endframe Display Order | Sets layering order: show endframe above overlays or overlays above endframe. | Endframe on top of overlays | choices: Endframe on top of overlays, Overlays on top of endframe |
Overlay 1 (optional)
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Asset | Image asset for overlay 1. | ||
| Width | Width of the overlay. Use responsive units (vw, vh, %) or 'auto'. | auto | |
| Height | Height of the overlay. Use responsive units (vw, vh, %) or 'auto'. | 10vh | |
| Position | Position of the overlay relative to the banner. | top-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| Time - In (optional) | Video time (seconds) at which the overlay appears. | ||
| Time - Out (optional) | Video time (seconds) at which the overlay hides. |
Overlay 2 (optional)
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Asset | Image asset for overlay 2. | ||
| Width | Width of the overlay. Use responsive units (vw, vh, %) or 'auto'. | auto | |
| Height | Height of the overlay. Use responsive units (vw, vh, %) or 'auto'. | 10vh | |
| Position | Position of the overlay relative to the banner. | bot-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| Time - In (optional) | Video time (seconds) at which the overlay appears. | ||
| Time - Out (optional) | Video time (seconds) at which the overlay hides. |
Text Overlay (optional)
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Text | Text content displayed as overlay. | ||
| Font Size | Font size of the text overlay (supports responsive units). | 1vw | |
| Position | Position of the overlay relative to the banner. | bot-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| Text Colour | Colour of the text overlay. | #ffffff | |
| Font | Font family used for the text overlay. | sans-serif | choices: sans-serif, serif, monospace, impact | |
| Time - In (optional) | Video time (seconds) at which the overlay appears. | ||
| Time - Out (optional) | Video time (seconds) at which the overlay hides. |
Overlay Config
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Vertical Offset | Vertical distance from the top or bottom edges for overlays positioned top or bottom. | 12vh | |
| Horizontal Offset | Horizontal distance from the left or right edges for overlays positioned left or right. | 6vh |
Video Streaming with Overlays
Streamed HTML5 Video with repositionable logo, CTA and text overlays. · Version 1.0.0
Warning: Video Streaming with Overlays is archived and no longer actively maintained. Recommended alternative: Video Streaming.
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| 0. Click Url | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| 1. Video | Provide the 1. video video in MP4 or WEBM format, encoded for autoplay and kept under the maximum weight. | ||
| 1.1 Video Scaling Mode | Select the 1.1 video scaling mode option from the list to control how the template behaves. | Letterbox | choices: Cover, Contain, Pillarbox, Letterbox | |
| 1.2 Video Position | Controls how the 1.2 video position aligns inside the frame. Pick the focal point that keeps the subject in view. | Center | choices: Top, Center | |
| 1.3 Background Colour | Hex colour (#RRGGBB or #RRGGBBAA) applied to this element. Use it to match brand palettes and overlay blends. | #000000 | |
| 1.4 Max Stream Weight | Select the 1.4 max stream weight option from the list to control how the template behaves. | 3.5mb | choices: 3.5mb, 3.0mb, 2.5mb, 2.0mb, 1.5mb, 1.0mb | |
| 2.0.1 Vertical Offset | Sets the 2.0.1 vertical offset value used in the creative. Supports plain text or CSS units where required. | 5vh | |
| 2.0.2 Horizontal Offset | Sets the 2.0.2 horizontal offset value used in the creative. Supports plain text or CSS units where required. | 5vh | |
| 2.1.1 Logo Image | Upload the 2.1.1 logo image asset (JPG, PNG, or WEBP). Follow safe-zone guidance and stay within the platform file-size limits. | ||
| 2.1.2 Logo Position | Controls how the 2.1.2 logo position aligns inside the frame. Pick the focal point that keeps the subject in view. | top-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| 2.1.3 Logo Height | Define the 2.1.3 logo height using responsive CSS units (px, %, vw, vh) so it scales across screens. | 10% | |
| 2.1.4 Logo Width | Define the 2.1.4 logo width using responsive CSS units (px, %, vw, vh) so it scales across screens. | auto | |
| 2.2.1 CTA Image | Upload the 2.2.1 cta image asset (JPG, PNG, or WEBP). Follow safe-zone guidance and stay within the platform file-size limits. | ||
| 2.2.2 CTA Position | Controls how the 2.2.2 cta position aligns inside the frame. Pick the focal point that keeps the subject in view. | mid-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| 2.2.3 CTA Height | Define the 2.2.3 cta height using responsive CSS units (px, %, vw, vh) so it scales across screens. | 8% | |
| 2.2.4 CTA Width | Define the 2.2.4 cta width using responsive CSS units (px, %, vw, vh) so it scales across screens. | auto | |
| 2.3.1 Text Overlay | Copy displayed in the creative for this field. Keep it concise for readability on smaller screens. | ||
| 2.3.2 Text Position | Controls how the 2.3.2 text position aligns inside the frame. Pick the focal point that keeps the subject in view. | bot-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right | |
| 2.3.3 Text Font | Select the 2.3.3 text font option from the list to control how the template behaves. | sans-serif | choices: sans-serif, serif, monospace, impact | |
| 2.3.4 Text Font Size | Define the 2.3.4 text font size using responsive CSS units (px, %, vw, vh) so it scales across screens. | 1vw | |
| 2.3.5 Text Colour | Hex colour (#RRGGBB or #RRGGBBAA) applied to this element. Use it to match brand palettes and overlay blends. | #FFFFFF | |
| 3. Sound | Select the 3. sound option from the list to control how the template behaves. | Enabled | choices: Enabled, Disabled | |
| 3.1 Mute button position | Controls how the 3.1 mute button position aligns inside the frame. Pick the focal point that keeps the subject in view. | top-right | choices: top-left, top-right, bot-left, bot-right | |
| 4.0 Endframe Settings | Select the 4.0 endframe settings option from the list to control how the template behaves. | Disabled | choices: After Video, Before Video, Before and After video, Disabled | |
| 4.1 Endframe Image | Upload the 4.1 endframe image asset (JPG, PNG, or WEBP). Follow safe-zone guidance and stay within the platform file-size limits. | ||
| 4.2 Endframe Display Order | Select the 4.2 endframe display order option from the list to control how the template behaves. | Endcard on top | choices: Endcard on top, Overlay on top |