Why is my site not filling the screen on the Phone breakpoint?

If your site isn't filling the screen on a phone breakpoint, it's usually because an element on your page is wider than the mobile viewport.

To resolve this issue, you need to identify and adjust any problematic elements.

First, look for elements that have a fixed width, such as "321px", rather than a responsive width like "100%" or "1fr". Fixed widths can prevent the element from resizing properly on smaller screens. Additionally, check for elements with a maximum width (Max Width) setting that may be too large for mobile viewports. These settings can constrain the width of elements, causing layout issues on mobile devices.

Once you've identified the problematic element, adjust its width to be more responsive. Use relative units like percentages or fractions instead of fixed pixel values. Removing or modifying Max Width settings that exceed the mobile viewport can also help. After making these adjustments, update and republish your site to ensure the changes take effect.

By following these steps, you should see your site properly filling the screen on the phone breakpoint, enhancing the user experience on mobile devices.