// Generate rules to indent sub menus text // // We'll use left border to avoid messing with the padding. @mixin sm-dox__sub-items-indentation($amount, $chainable: 'ul ', $level: 4, $chain: '') { @for $i from 1 through $level { $chain: $chain + $chainable; #{$chain} a, #{$chain} a:hover, #{$chain} a:focus, #{$chain} a:active { border-left: ($amount * ($i + 1)) solid transparent; } } }