---
title: Adhesion
description: Highly visible, responsive ads anchored to the top or bottom edge of the device.
---
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# Adhesion
## Highly visible, responsive ads anchored to the top or bottom edge of the device.
**Resources:**
[Explore our Ad Gallery for examples of this format](https://adventive.com/gallery?format=Adhesion)
**In this article, you will learn:**
[How to Build an Adhesion Unit](https://help.adventive.com/en/knowledge/adhesion-format#build-adhesion)
[How to Configure the Adhesion Unit Properties](https://help.adventive.com/en/knowledge/adhesion-format#configure-adhesion)
### How to Build an Adhesion Unit
Below you will find a step-by-step process to build an Adhesion unit.
1. Provide a *unique* **Name** for the unit, and select **Adhesion** from the **Format** dropdown.
2. Define your initial ad dimensions (or select one of Adventive's pre-populated options).
3. Backup Image (Optional) and Click URL (Optional) may be left blank at this time, click **Submit. **
**Configuring the canvas**
The builder will now load the main Adhesion canvas based on the dimensions inputted in step #2. You may now place your ad content which will be displayed in a fixed position either at the top or bottom of the page depending on the Adhesion Settings configured in the next section.
The Adhesion format supports multi-screens for additional interactivity or expansion. Learn how to add additional screens in [this article](https://help.adventive.com/en/knowledge/screens-layers) and how to control navigation between screens in [this article](https://help.adventive.com/en/knowledge/action-go-to-screen).
**Configuring the General Ad Properties**
Modifications can easily be made to the general ad configuration using the General Ad Properties panel on the right-hand side of the builder window. See [this article](https://help.adventive.com/en/knowledge/general-ad-properties) for instructions on configuring the General Ad Properties.
### How to Configure the Adhesion Unit Properties
The Adhesion properties configuration options are explained below:
| Position | The position of the ad unit relative to the users screen. The options include: Top, or Bottom. |
| --- | --- |
| Roadblock | The roadblock option prevents the user for navigating away from the unit by hiding the close button for a defined number of seconds. |
| Seconds | If the roadblock option is enabled, this setting controls the number of seconds the close button is hidden before being revealed. |
| Responsive Setting | **Maintain Aspect Ratio** - if selected, will maintain aspect ratio of imagery. **Maintain Height** - if selected, will keep a constant adhesion ad height and will truncate the width of the ad when responsive. |
| Hide ad when scrolling | When selected, the ad will be hidden when the viewer scrolls the page, but reappears when scrolling stops. |
| Disable close button | When selected, the default "X" close button will not appear and the ad will always display. |
| Close button icon | To upload a custom close button icon image, click the input box, upload the icon, or select from the asset manager. |
| Close on Timer | When selected, the ad unit will automatically close after a defined set of seconds. |
| Timer Color | The color of the timer, if set to display. |
| Seconds | The number of seconds before the ad unit will automatically close. |
| Show Timer | When selected the timer will be displayed. |
| Cancel on engagement | When selected, the timer will be disabled and the ad unit will not automatically close if the viewer interacts with the ad unit. |
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