Columns on mobile too
.column
.column
.column
Columns only on desktop
.column
.column
.column
Narrow column for mobile only
.column.is-narrow-mobile
col
col
Narrow column for tablet and up
.column.is-narrow-tablet
col
col
Narrow column for desktop and up
.column.is-narrow-desktop
col
col
Different column sizes per breakpoint with same values as width (example)
.column
.column
.column
.column