Could you clarify where exactly you’d like to control the mobile width? Are you looking to adjust the overall site width, the content container, or a specific section? Let me know so I can guide you accordingly!
You can try the following CSS to adjust the overall site width for mobile. Please add this code in Theme Settings > Custom CSS > Custom CSS for mobile.
body {
max-width: 95%; /* Adjust the overall site width */
margin: 0 auto;
}
You can adjust the container width directly in the page builder settings that you are using.