Why Isn't My CSS Grid Layout Working in IE11, and How Can I Fix It?

Why CSS Grid Layout is Not Working in IE11 Despite Prefixes

CSS Grid layout has revolutionized web design, providing a flexible and powerful tool for creating complex layouts. However, it is important to note that IE11 supports an older version of the Grid specification, leading to compatibility issues.

The Problem: Outdated Grid Specification

IE11 uses a version of the CSS Grid specification from 2011, which predates many modern features. This includes the following properties:

• repeat() function
• span keyword
• grid-gap property

Solution: Implement Legacy Syntax

To ensure compatibility with IE11, you must use the syntax supported by its outdated Grid specification. Here are the required changes:

1. Replace repeat() with Explicit Grid Template

Instead of using the repeat() function, explicitly define the grid template columns and rows:

.grid {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

2. Replace span with grid-column-span and grid-row-span

Use the following properties to span items across multiple columns or rows:

.grid-item.height-2x {
  grid-row-span: 2;
}
.grid-item.width-2x {
  grid-column-span: 2;
}

3. Handle Grid Item Auto-Placement

IE11 does not support auto-placement of grid items. Explicitly define the position of each item using the grid-row and grid-column properties:

.grid-item {
  grid-row: 1;
  grid-column: 1;
}

4. Remove grid-gap

The grid-gap property is not supported in IE11. Use margins or padding to separate grid items.

Conclusion

By implementing these legacy syntax changes, you can ensure that your CSS Grid layout functions correctly in IE11. Remember that the support for these outdated properties is limited, and it is recommended to use the modern Grid specification whenever possible.

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