bootstrap-vue/src/mixins/card-mixin.js

BootstrapVue provides one of the most comprehensive implementations of Bootstrap 4 components and grid system for Vue.js and with extensive and automated WAI-ARIA accessibility markup.

export default {
  props: {
    tag: {
      type: String,
      default: 'div'
    },
    bgVariant: {
      type: String,
      default: null
    },
    borderVariant: {
      type: String,
      default: null
    },
    textVariant: {
      type: String,
      default: null
    }
  }
}