export type BackgroundPositionX = 'left' | 'center' | 'right';
export type BackgroundPositionY = 'top' | 'center' | 'bottom';
export type BackgroundRepeat = 'repeat' | 'repeat-x' | 'repeat-y' | 'no-repeat';
export type BackgroundSize = 'auto' | 'contain' | 'cover' | '100% 100%';
export type BackgroundAttachment = 'scroll' | 'fixed' | 'local';