Draft:    https://www.w3.org/TR/2018/CR-css-contain-1-20181108/
Title:    CSS Contain Level 1

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Issue 1.
Summary:  Style containment is difficult to implement, and should not hold up the rest
From:     Emilio
Comment:  https://github.com/w3c/csswg-drafts/issues/3280
Closed:   Accepted
Resolved: https://github.com/w3c/csswg-drafts/issues/3280#issuecomment-467588765
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Issue 2.
Summary:  Spec makes incorrect claims about outside-in isolation
From:     Christian Biesinger
Comment:  https://github.com/w3c/csswg-drafts/issues/3357
Closed:   Invalid
Resolved: Editors' discretion
