Launch Webs Editor
Visit the page where you want to add POWr Tumblr Feed.
Select Other from the list of components. Drag the Custom HTML element onto the page.
Custom HTML Box
Double click the box.
Copy and Paste
Paste the following code into the box. Then save.
Note: Webs elements don't automatically change size. So, you may want to change the height of your HTML box. To do this, just change the height="600px" to a higher number.
To edit your Tumblr Feed on Webs:
Visit your live Webs web page and select the Settings Icon in the upper right corner of the Tumblr Feed Plugin.