Chrome and Safari don't implement `clip` (or some `-webkit-` version of it) AFAICT. I don't feel strongly either way, but the spec behavior was resolved somewhat recently by the WG: https://github.com/w3c/csswg-drafts/issues/1971#issuecomment-380148099
Bug 1531609 Comment 28 Edit History
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Chrome and Safari don't implement `clip` (nor some `-webkit-` version of it) AFAICT. I don't feel strongly either way, but the spec behavior was resolved somewhat recently by the WG: https://github.com/w3c/csswg-drafts/issues/1971#issuecomment-380148099