Layouts and Wide Alignments in WordPress: Then, Now, and Upcoming Changes (gutenbergtimes.com)

For most of WordPress’ history, the platform accepted a single layout width, defined by the active theme’s global $content_width variable. Theme authors were required to handle the CSS for it and any other sizes they wanted on output. When WordPress 5.0 launched the block editor, it introduced the concept of wide and full alignments (technically,…