$_min-columns
The minimum number of columns
scss
$_min-columns: 1;
The minimum number of columns
$_min-columns: 1;
The maximum number of columns
$_max-columns: 12;
Hash of breakpoints
$_sizes: (
'sm': 0,
'md': (_px2rem(640px) / _px2rem($_base-font-size-px) * 1em),
'lg': (_px2rem(1024px) / _px2rem($_base-font-size-px) * 1em),
'xl': (_px2rem(1280px) / _px2rem($_base-font-size-px) * 1em)
);