In your site's Dashboard, hover over Appearance, then click Customize. Next, choose Header & Footer for Pages/Posts at bottom of the list:
![Settings under customize](https://teamdynamix.umich.edu/TDPortal/Images/Viewer?fileName=d275c641-0b4d-450c-b750-23883a5df4ef.png)
Fill out the areas you would like to update. You can either enter HTML or plain text:
![Header and footer options](https://teamdynamix.umich.edu/TDPortal/Images/Viewer?fileName=53d74d1e-5358-4ec1-9f1f-cd2fea18b4da.png)
When finished, click the Save & Publish button.