{"action":"created","issue":{"url":"https://api.github.com/repos/whatwg/html/issues/603","repository_url":"https://api.github.com/repos/whatwg/html","labels_url":"https://api.github.com/repos/whatwg/html/issues/603/labels{/name}","comments_url":"https://api.github.com/repos/whatwg/html/issues/603/comments","events_url":"https://api.github.com/repos/whatwg/html/issues/603/events","html_url":"https://github.com/whatwg/html/issues/603","id":130682362,"number":603,"title":"Z-order of absolute div in <details> and <summary>","user":{"login":"aethanyc","id":102858,"avatar_url":"https://avatars.githubusercontent.com/u/102858?v=3","gravatar_id":"","url":"https://api.github.com/users/aethanyc","html_url":"https://github.com/aethanyc","followers_url":"https://api.github.com/users/aethanyc/followers","following_url":"https://api.github.com/users/aethanyc/following{/other_user}","gists_url":"https://api.github.com/users/aethanyc/gists{/gist_id}","starred_url":"https://api.github.com/users/aethanyc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aethanyc/subscriptions","organizations_url":"https://api.github.com/users/aethanyc/orgs","repos_url":"https://api.github.com/users/aethanyc/repos","events_url":"https://api.github.com/users/aethanyc/events{/privacy}","received_events_url":"https://api.github.com/users/aethanyc/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-02-02T13:23:58Z","updated_at":"2016-02-02T15:40:44Z","closed_at":null,"body":"File this issue per request in [Bug 591737 comment 234](https://bugzilla.mozilla.org/show_bug.cgi?id=591737#c234).  \r\n\r\nThe question was the z-ordering of two absolutely positioned elements, where one is a child of the \\<summary\\> and one is a child of the \\<details\\> that comes before \\<summary\\> in the DOM (assuming neither \\<summary\\> nor \\<details\\> are absolute containing blocks)\r\n\r\nThe test case is here. https://jsfiddle.net/aethanyc/mk2fd\r\n\r\nCurrently, both Chrome and Firefox implementation in progress in [Bug 591737](https://bugzilla.mozilla.org/show_bug.cgi?id=591737) put the absolute div in \\<summary\\> in the back. It might be good to note the z-order of the children in \\<summary\\>."},"comment":{"url":"https://api.github.com/repos/whatwg/html/issues/comments/178643148","html_url":"https://github.com/whatwg/html/issues/603#issuecomment-178643148","issue_url":"https://api.github.com/repos/whatwg/html/issues/603","id":178643148,"user":{"login":"foolip","id":498917,"avatar_url":"https://avatars.githubusercontent.com/u/498917?v=3","gravatar_id":"","url":"https://api.github.com/users/foolip","html_url":"https://github.com/foolip","followers_url":"https://api.github.com/users/foolip/followers","following_url":"https://api.github.com/users/foolip/following{/other_user}","gists_url":"https://api.github.com/users/foolip/gists{/gist_id}","starred_url":"https://api.github.com/users/foolip/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/foolip/subscriptions","organizations_url":"https://api.github.com/users/foolip/orgs","repos_url":"https://api.github.com/users/foolip/repos","events_url":"https://api.github.com/users/foolip/events{/privacy}","received_events_url":"https://api.github.com/users/foolip/received_events","type":"User","site_admin":false},"created_at":"2016-02-02T15:40:44Z","updated_at":"2016-02-02T15:40:44Z","body":"How is this implemented in Chrome and Firefox? Presumably there's no special casing of `<details>` or `<summary>`, but there's simply some default style that yields this computed style and layout?\r\n\r\n@upsuper @bzbarsky "}}