| afterClose | Called when close animation is finished | () => void | - | 
| banner | Whether to show as banner | boolean | false | 
| closable | Whether Alert can be closed | boolean | - | 
| closeText | Close text to show | string|slot | - | 
| description | Additional content of Alert | string|slot | - | 
| message | Content of Alert | string|slot | - | 
| showIcon | Whether to show icon | boolean | false, in bannermode default is true | 
| iconType | Icon type, effective when showIconistrue | string | - | 
| type | Type of Alert styles, options: success,info,warning,error | string | info, inbannermode default iswarning |