Here are some list entries that you can just copy-and-paste into your Card Designer project.
This notification will display an icon or image with a size of 50 pixels to the left of the notification text. The notification title is clickable and will open the notification in the source.
If the notification has no image, then the title will be displayed a slightly larger font.
With button on the right
If the notification has no link, then you could use the Dismiss button on the right to hide the Card after you're done looking at it. This will also trigger a little "toast" popup message to confirm the Card has been dismissed.