Choose Insert, and then More Gadgets.
In the Google Sites Editor, find the Insert menu, and open it. You will see a list of components you can embed on your site, like Tables, Images, and Links. Click on the More Gadgets option. This will allow you to add customizable tools like POWr Wedding Invitation to your site.
Copy and Paste
The Gadget manager will appear. Select Add Gadget by URL. Copy and paste this URL into the box. Click Add to finish.
Adjust Height and Width
Now that you’ve added your new, customizable Wedding Invitation Widget to your Google Sites page, you’ll probably want to adjust the size and shape of the Widget. Using the options in the pop-up, pick a height and width for your plugin. If you'd like, you can add a border, title or scrollbar to your Wedding Invitation Widget, but we don't advise it. You’ll have more editing controls directly through the plugin.
Set up POWr Wedding Invitation
Go to the live Google Sites website and select the Settings Icon in the upper right corner of the Wedding Invitation Widget.
In the POWr Editor, click Import Existing Wedding Invitation, find Wedding Invitation- and click Copy.