Centering the Image in Rise Tab Block

Thanks for the response, Alyssa! A few other things that I found really limiting with text blocks in Rise is the ability to format. For instance, I'm unable to hit 'Tab' to indent text and have to use the Space Bar to move text to the center of a block. This causes alignment issues when the content is viewed across multiple devices. 

Also, it would be great if there was a way to make text columns as well. I improvised here in this example (image attached) but it looks terrible in mobile landscape view.