Bug 160538

Created attachment 285300 [details] repro of #id::slotted not working Prefixing `::slotted()` with an #id selector does apply the styling. Repro: http://jsbin.com/qetofazevu/edit?html,output <nav> <span>Hello</span> <span>world</span> </nav> <template> <style> #s::slotted(*) { background: red; } </style> <slot id="s"></slot> </template> <script> var t = document.querySelector('template'); t.content.cloneNode(true); var nav = document.querySelector('nav'); nav.attachShadow({mode:'open'}).appendChild(t.content.cloneNode(true)); </script> Notes: - using `::slotted(*)` and `slot::slotted(*)` does apply the styling. - repro works in Chrome 53+