diff --git a/api/@ohos.web.webview.d.ts b/api/@ohos.web.webview.d.ts
index 7c4a75c77c32f8e237f0864b1e7c5ccedd901900..72f27a170ccf39c2c3c18e2e6a86d46b05041ddb 100644
--- a/api/@ohos.web.webview.d.ts
+++ b/api/@ohos.web.webview.d.ts
@@ -26,7 +26,9 @@ import { Callback } from './@ohos.base';
 import type cert from './@ohos.security.cert';
 import type image from './@ohos.multimedia.image';
 import type print from './@ohos.print';
-
+/*** if arkts 1.2 */
+import { SizeOptions } from './arkui/component/units';
+/*** endif */
 import { WebNetErrorList } from './@ohos.web.netErrorList';
 
 /**
@@ -3152,7 +3154,8 @@ declare namespace webview {
      * @type { ?SizeOptions }
      * @syscap SystemCapability.Web.Webview.Core
      * @atomicservice
-     * @since 12
+     * @since arkts {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     size?: SizeOptions;
   }
@@ -3195,7 +3198,8 @@ declare namespace webview {
      * @type { ?SizeOptions }
      * @syscap SystemCapability.Web.Webview.Core
      * @atomicservice
-     * @since 12
+     * @since arkts {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     size?: SizeOptions;