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How to get widget like this one?

1. Post your links on Twitter.
2. Click on a drop down menu on one tweet and create Moment.
3. Add cover image and title to the Moment.
4. Save
5. Click Embed code and copy it for your page.
6. Paste the same code under the Paste widget under this line in HTML code of your page.
7. Add other tweets to the same Moment.