The spec describes it reserving space for the scrollbar and that makes sense since that s what a gutter ultimately is.
Css gutter bottom.
Default value is 0.
If there is a column rule between columns it will appear in the middle of the gap.
Read about length units.
The browser calculates a bottom margin.
The scrollbar gutter property provides flexibility to determine how the space the browser uses to display a scrollbar that interacts with the content on the screen.
Guttersor alleysare spacing between content tracks.
The column gap property specifies the gap between the columns.
Play it auto.
Negative values are allowed.
Specifies a fixed bottom margin in px cm em etc.
A riskier hack than it looks but with a few extra steps we can make almost perfect grid style gutters for flexbox.
These can be created in css grid layoutusing the grid column gap grid row gap or grid gapproperties.
You ll notice the grid above has been pushed to the right because it s now 99 99 wide plus the grid gaps.
Flexbox gutters and negative margins mostly solved one of the key advantages of css grid over flexbox is that grid came with the grid gap property which is now becoming just gap in future browser implementations.
When columns are defined using values they ll use exactly those values and add any grid gap on top.
Play it initial.
A container that reserves space for whatever is in it and separates it from other elements.
Play it specifies a bottom margin in percent of the width of the containing element.
Sets this property to its default value.