Hello! I'm new to Braze and trying to get some simple templates set up. I can't get my email body to align w/ my footer content block. I'm also trying to understand when to use the custom footer vs. content block to create a footer in Braze. The former seems to have very few options to make look nice while the latter is more flexible. Is that the difference? Can someone help me understand how to line up a content block with my template? The desktop looks fine but the mobile is not aligning. Is this a bug?