What could be causing the issue in Webflow with not being able to use the auto-fit grid despite deleting all FR, VH, or % values?

You're experiencing issues using auto-fit in a CSS grid within Webflow even after removing all fr, vh, or percentage-based units. This typically points to a grid setup conflict that prevents auto-fit from behaving correctly.

1. Check for Fixed Widths on Grid Children

• Auto-fit needs flexible child elements to respond to content or available space.
• If a grid child has a fixed width, Webflow may not allow auto-fit to engage.
• Inspect all grid child elements to ensure no fixed widths (e.g., 200px) are applied via style panel.

2. Confirm Column Definitions

• Ensure your grid columns are using auto or minmax() with auto-fit or auto-fill.
• Webflow may not enable auto-fit unless a minmax() function is structured properly, like:
  minmax(200px, 1fr) with auto-fit applied.

3. Verify the Display Setting

• Confirm that the section using the grid has its Display set to Grid and not Flex or Block.
• Sometimes switching display modes can reset or lock out certain grid options.

4. Use of Auto-Fit Requires Min-Max

• Webflow only enables auto-fit when used with minmax() to define grid tracks.
• For example, instead of just selecting auto-fit, you must combine it with a track size like:
  auto-fit + minmax(150px, 1fr)

5. Potential Bug or UI Delay

• Webflow’s UI might not update immediately after removing previously conflicting units.
• Try refreshing the Designer or fully reloading the browser. If using Chrome, clear Designer cache with Cmd+Shift+R (Ctrl+Shift+R on Windows).

6. Grid Nested Inside Another Grid/Flex

• If your grid is inside another grid or a flexbox container, constraints from the parent may prevent auto-fit from functioning.
• Test the grid in a standalone section to see if the issue persists.

Summary

To resolve the issue with auto-fit not appearing in Webflow: ensure all grid child elements are size-flexible (no fixed widths), define grid columns using minmax() in combination with auto-fit, and check for any styling conflicts or nesting restrictions. Refresh the Designer if behavior seems inconsistent.