Google AMP: Sticky header possible?
问题 So far I haven't found a solid way to create a sticky header on AMP pages. I know there are css workaround/hacks, but nothing I can use in a production environment. A simple "position:fixed;" unfortunately won't work in my case. Out of all the components, I thought there would be one that toggles a body class on scroll, but I haven't found anything yet. Also don't think "amp-position-observer" will be of any use. Am I missing something? Ideally I'd like to be able to toggle an element's