docs/stylesheets/shadows.scss

.hover-shadow {
  & {
    transition: box-shadow 0.3s ease-in-out;

    &:hover {
      box-shadow: $box-shadow !important;
    }
  }
  
  &-medium {
    transition: box-shadow 0.3s ease-in-out;

    &:hover {
      box-shadow: $box-shadow-medium !important;
    }
  }
  
  &-large {
    transition: box-shadow 0.3s ease-in-out;

    &:hover {
      box-shadow: $box-shadow-large !important;
    }
  }
  
  &-extra-large {
    transition: box-shadow 0.3s ease-in-out;

    &:hover {
      box-shadow: $box-shadow-extra-large !important;
    }
  }
}