Sticky too

Prokhor · web-flow · commit e4be3724a47c · 2018-10-28T16:34:19.000+03:00
"The offsetParent is the nearest ancestor that is:
1. CSS-positioned (position is absolute, relative, fixed…❗️or sticky❗️
diff --git a/2-ui/1-document/09-size-and-scroll/article.md b/2-ui/1-document/09-size-and-scroll/article.md
@@ -60,7 +60,7 @@ These properties are rarely needed, but still they are the "most outer" geometry
 
 The `offsetParent` is the nearest ancestor that is:
 
-1. CSS-positioned (`position` is `absolute`, `relative` or `fixed`),
+1. CSS-positioned (`position` is `absolute`, `relative`, `fixed` or `sticky`),
 2. or `<td>`, `<th>`, `<table>`,
 2. or `<body>`.
 
