$box-color: $text !default $box-background-color: $white !default $box-radius: $radius-large !default $box-shadow: 0 2px 3px rgba($black, 0.1), 0 0 0 1px rgba($black, 0.1) !default $box-padding: 1.25rem !default $box-link-hover-shadow: 0 2px 3px rgba($black, 0.1), 0 0 0 1px $link !default $box-link-active-shadow: inset 0 1px 2px rgba($black, 0.2), 0 0 0 1px $link !default .box +block background-color: $box-background-color border-radius: $box-radius box-shadow: $box-shadow color: $box-color display: block padding: $box-padding a.box &:hover, &:focus box-shadow: $box-link-hover-shadow &:active box-shadow: $box-link-active-shadow