format method
Implementation
@override
LayoutFormat format(
double containerWidth, [
double containerHeight = double.maxFinite,
]) {
// Apply the same margin for both sides.
final horizontalMargin = leftMargin(containerWidth);
return LayoutFormat(
columns: 12,
gutter: 24,
leftMargin: horizontalMargin,
topMargin: 0,
rightMargin: horizontalMargin,
bottomMargin: 0,
);
}