we are not sure if we understand what you mean, but while you got Muffin Builder you have "Visual Editor" item. Inside you can use the same editor as in wordpress default editor. So all you need to do is add image and the add text. While you have editor you should be able to play with that without problems.
This probably can be done within css only. If you will send us url to page where you got this image and text, then we can have a look on it and try to find solution. The best will be to send access to your wp dashboard on pm so we can test everything.
Comments
we are not sure if we understand what you mean, but while you got Muffin Builder you have "Visual Editor" item. Inside you can use the same editor as in wordpress default editor. So all you need to do is add image and the add text. While you have editor you should be able to play with that without problems.
Hope this will help you a lot