$card-color-white: $color-white !default;
$card-text-overlay: rgba($color-black, 0.35) !default;
$card-background-color: $card-color-white;
$card-padding-sm: .8 * $unit;
$card-padding: 1.6 * $unit;
$card-padding-lg: 2 * $unit;
$card-font-size: $font-size-small;