You can add a Google AdWords Remarketing code to your website by adding it in your Apps dashboard and adding some code to your Footer. 

Set up the AdWords app

1. Navigate to your Websites app and select the Settings tab at the top of the page.
2. Select Apps on the left-hand sidebar.
   
   
3. Click the Add Third Party App button, then select Google AdWords Remarketing from the menu that appears.
   
   
4. Open your Head code and copy the Conversion ID (starts with AW).
5. Paste your Conversion ID in the Conversion ID box.
   
   
6. Click Save.

Set your conversion code

1. Copy the entire Body code.
2. Click on Pages at the top of your Websites 360® dashboard.
3. On the right-hand sidebar under Global Content, select Footer.
   
4. Add an HTML block
   
5. Copy your Body code and paste it in the HTML block.
6. Click Save at the top of the HTML block.
7. Hit Publish.