CSS Subgrids offer a solution to the persistent challenge of vertical alignment in web design, especially on devices with varying screen sizes. Traditional CSS Grids, while responsive, often require complex nested grids to ensure proper alignment, which can be cumbersome for developers. Subgrids simplify this process by relying on the parent grid for positioning, maintaining alignment when the grid scales across different devices. Although CSS Subgrids enhance vertical alignment, their adoption is currently limited due to poor browser compatibility, with only Firefox offering support so far. As a workaround, developers can use CSS Grids and flexbox, or opt for trial-and-error methods to achieve consistent alignment. Despite current limitations, CSS Subgrids are expected to gain wider browser support, making them a promising tool for web developers seeking efficient and responsive design solutions.