The Common category includes the following blocks: Paragraph, image, headings, list, gallery, quote, audio, cover, video. The paragraph block is the default block type.  It should not have any alignment of any kind. It should just flow like you would normally expect. Nothing fancy.

Welcome to image alignment! The best way to demonstrate the ebb and flow of the various image positioning options is to nestle them snuggly among an ocean of words. Grab a paddle and let’s get started. On the topic of alignment, it should be

This post should display a featured image, if the theme supports it. Non-square images can provide some unique styling issues. This post tests a vertical featured image.

This post should display a featured image, if the theme supports it. Non-square images can provide some unique styling issues. This post tests a horizontal featured image.