Want to add personality to your newsletters? Animate your feelings with GIFs! Buttondown embeds GIFs directly from Giphy's site.
Copy a Giphy link and paste it on its own line in your email. Buttondown will automatically insert the animation. Both the GIF page link and the direct media link work.
Want to see how the GIFs will look in the email? In the top right corner, click "email preview" and a "web preview" button. Toggle back and forth to ensure your emotes are emoting.