Can I Position Grandchildren Directly on a Grid Container?
The notion of CSS Grid layout typically revolves around direct children of a grid element being positioned on the grid. However, what if we want to place a grandchild within the grid structure? Does this make logical sense?
Understanding "display: subgrid"
CSS Grid Level 2 introduces the "display: subgrid" property, which allows grid containers to extend their influence to nested elements. This property:
- Creates a subgrid within the element, making it a special type of grid container.
- Inherits grid tracks from the parent grid.
- Allows children of the subgrid to participate in the sizing of the parent grid.
Implementation Status
Unfortunately, display: subgrid is not yet implemented in major browsers. Due to this limitation, we cannot effectively position grandchildren on a grid container using this property.
Limitations of CSS Grid Structure
Within CSS Grid, only direct children of a container can become grid items and utilize grid properties. This means that grandchildren must either be positioned through nesting or using alternative methods.
Possible Workarounds
Display: grid on Grid Items
Establishing display: grid on a grid item can achieve some limited functionality, but this approach is not fully analogous to display: subgrid.
Display: contents
Another potential workaround involves utilizing display: contents, which can inherit the grid layout of its parent. This technique is detailed in resources such as:
- [What is an alternative to css subgrid?](https://stackoverflow.com/questions/42374779/what-is-an-alternative-to-css-subgrid)
Additional Information
For further exploration of this topic, refer to the following resources:
- [Subgrids Explained](https://blogs.igalia.com/mrego/2016/02/12/subgrids-thinking-out-loud/)
- [Mozilla Bugzilla: Display: subgrid Not Implemented](https://bugzilla.mozilla.org/show_bug.cgi?id=1240834)
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