Hello, Kris,
Thank you for contacting us and for using XStore.
Edit demo post using Elementor > settings of section > Width https://prnt.sc/iJs5Idf_wIKq
If you create new pages and posts – https://gyazo.com/ad97db407058434db1cd4e4f7098834c
If you have any additional questions or concerns, please do not hesitate to reach out to us. Our support team is always available to assist you.
Kind Regards,
8theme team