https://www.w3.org/Bugs/Public/show_bug.cgi?id=24232
Bug ID: 24232
Summary: The containing block of fixpos elements in the top
layer shouldn't be the ICB
Product: WebAppsWG
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: Fullscreen
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected], [email protected]
The spec says the containing block of an element in the top layer is the
initial containing block. However, this would mean elements with fixed
positioning don't behave as such: they would be positioned relative to the
document's origin rather than the viewport's. Instead, the containing block of
fixpos elements should be the viewport, as normal.
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