It is possible to add any custom code before or after your individual ads and groups. While editing an ad or group, there is a text area that allows for any script, CSS, or HTML code to be added.
If adding script or styles, be sure to include the appropriate tags. Code must be within a <script> or <style> tag.
Because you have the freedom to add any type of code, we recommend using this feature with caution. Always check to be sure your custom code does not cause display issues with your ad. Also be sure to not implement any code that may be harmful to visitors.