Add scrollIntoView() container option

files/en-us/web/api/element/scrollintoview/index.md

@@ -18,7 +18,7 @@ visible to the user.
 ```js-nolint
 scrollIntoView()
 scrollIntoView(alignToTop)
-scrollIntoView(scrollIntoViewOptions)
+scrollIntoView(options)
 ```
 
 ### Parameters
@@ -33,29 +33,40 @@ scrollIntoView(scrollIntoViewOptions)
       of the visible area of the scrollable ancestor. Corresponds to
       `scrollIntoViewOptions: {block: "end", inline: "nearest"}`.
 
-- `scrollIntoViewOptions` {{optional_inline}}
-  {{experimental_inline}}
-  - : An Object with the following properties:
+- `options` {{optional_inline}}
+  - : An object with the following properties:
     - `behavior` {{optional_inline}}
-      - : Determines whether scrolling is instant or animates smoothly. This option is a string which must take one of the following values:
+      - : Determines whether scrolling is instant or animates smoothly. Its value can be one of the following:
         - `smooth`: scrolling should animate smoothly
         - `instant`: scrolling should happen instantly in a single jump
         - `auto`: scroll behavior is determined by the computed value of {{cssxref("scroll-behavior")}}
+
+        The default is `auto`.
+
     - `block` {{optional_inline}}
-      - : Defines the vertical alignment of the element within the scrollable ancestor container. This option is a string and accepts one of the following values:
+      - : Defines the vertical alignment of the element within the scrollable ancestor container. Its value can be one of the following:
         - `start`: Aligns the element's top edge with the top of the scrollable container, making the element appear at the start of the visible area vertically.
         - `center`: Aligns the element vertically at the center of the scrollable container, positioning it in the middle of the visible area.
         - `end`: Aligns the element's bottom edge with the bottom of the scrollable container, placing the element at the end of the visible area vertically.
-        - `nearest`: Scrolls the element to the nearest edge in the vertical direction. If the element is closer to the top edge of the scrollable container, it will align to the top; if it's closer to the bottom
-          edge, it will align to the bottom. This minimizes the scrolling distance.
-        - Defaults to `start`.
+        - `nearest`: Scrolls the element to the nearest edge in the vertical direction. If the element is closer to the top edge of the scrollable container, it will align to the top; if it's closer to the bottom edge, it will align to the bottom. This minimizes the scrolling distance.
+
+        The default is `start`.
+
+    - `container` {{optional_inline}}
+      - : Defines the scrollable ancestor container. Its value can be one of the following:
+        - `all`: All scrollable containers are impacted (including the viewport).
+        - `nearest`: Only the nearest scrollable container is impacted by the scroll.
+
+        The default is `all`.
+
     - `inline` {{optional_inline}}
-      - : Defines the horizontal alignment of the element within the scrollable ancestor container. This option is a string and accepts one of the following values:
+      - : Defines the horizontal alignment of the element within the scrollable ancestor container. Its value can be one of the following:
         - `start`: Aligns the element's left edge with the left of the scrollable container, making the element appear at the start of the visible area horizontally.
         - `center`: Aligns the element horizontally at the center of the scrollable container, positioning it in the middle of the visible area.
         - `end`: Aligns the element's right edge with the right of the scrollable container, placing the element at the end of the visible area horizontally.
         - `nearest`: Scrolls the element to the nearest edge in the horizontal direction. If the element is closer to the left edge of the scrollable container, it will align to the left; if it's closer to the right edge, it will align to the right. This minimizes the scrolling distance.
-        - Defaults to `nearest`.
+
+        The default is `nearest`.
 
 ### Return value