=flex ($direction, $justify, $align, $wrap) display: flex flex-direction: $direction justify-content: $justify align-items: $align flex-wrap: $wrap =border-box box-sizing: border-box -moz-box-sizing: border-box -webkit-box-sizing: border-box // Figma xs shadow =box-shadow-xs box-shadow: 0 1px 2px rgba( 16, 24, 40, 0.05 ) // Figma lg shadow =box-shadow-lg box-shadow: 0 12px 16px -4px rgba(16, 24, 40, 0.08), 0 4px 6px -2px rgba(16, 24, 40, 0.03) // Figma md shadow =box-shadow-md box-shadow: 0 4px 8px -2px rgba(16, 24, 40, 0.1), 0 2px 4px -2px rgba(16, 24, 40, 0.06) =transition ($time, $action) -webkit-transition: $time $action -moz-transition: $time $action -ms-transition: $time $action -o-transition: $time $action transition: $time $action =keyframes ($name) @-webkit-keyframes #{$name} @content @-moz-keyframes #{$name} @content @-ms-keyframes #{$name} @content @keyframes #{$name} @content =border-radius ($tl, $tr, $br, $bl) border-radius: $tl $tr $br $bl -moz-border-radius: $tl $tr $br $bl -webkit-border-radius: $tl $tr $br $bl