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How Can CSS Grid Layout Achieve Equal Height Rows While Flexbox Cannot?
How Can CSS Grid Layout Achieve Equal Height Rows While Flexbox Cannot?
Dec 24, 2024 am 03:13 AM
Equal Height Rows with CSS Grid Layout
In contrast to Flexbox, CSS Grid Layout empowers developers with the ability to achieve equal height rows throughout a grid, eliminating discrepancies across columns.
The Role of the fr Unit
CSS Grid introduces the fr unit, a flexible length unit that automatically distributes free space within a grid container. When applied to all rows, as in the following syntax:
grid-auto-rows: 1fr;
all rows assume equal heights. Although counterintuitive, this behavior arises from a specific feature of the grid specification.
In situations where the grid container height is infinite, fr lengths adjust dynamically to accommodate the height of their content. For instance, in a grid containing rows of varying height, the tallest row will determine the maximum 1fr length, which in turn sets the height for all other rows.
Limitations of Flexbox
Flexbox does not possess the same capability as CSS Grid for creating equal height rows across multiple lines. According to the Flexbox specification:
In a multi-line flex container, the cross size of each line is the minimum size necessary to contain the flex items on the line.
In other words, each line in a flex container adopts the height necessary to fit its items, preventing a consistent row height.
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