CSSCả hai dùng với repeat() để tự động tạo columns. auto-fill: tạo tracks rỗng nếu còn space. auto-fit: collapse tracks rỗng, items stretch fill space. auto-fit phổ biến hơn cho responsive grids.
Both are used with repeat() to automatically create columns. auto-fill: creates empty tracks if space remains. auto-fit: collapses empty tracks, allowing items to stretch and fill the space. auto-fit is more commonly used for responsive grids.