:root{--canvas--sortable-empty-slot-height:40px;--canvas--sortable-empty-region-height:320px}.canvas--slot-empty-placeholder,.canvas--region-empty-placeholder{width:100%;height:100%;min-height:var(--canvas--sortable-empty-slot-height);grid-column:1/-1}.canvas--region-empty-placeholder{min-height:var(--canvas--sortable-empty-region-height)}