Click "Layout" on the left to make changes to the layout of the list of blog posts.
Tip: Manually save the current version of the site so you have a back-up in case you want to undo your layout changes. More info on saving and restoring back-ups: [https://support.wix.com/en/article/viewing-and-managing-your-site-history](https://support.wix.com/en/article/viewing-and-managing-your-site-history)