Print sheets stay on paper, navs stop gluing
Two fixes that make real sites render the way the reference browser does. First, a news site's masthead came back: some sites ship a separate print stylesheet meant only for the printer, and a news site's print sheet hides the entire top banner and navigation. The engine was applying it to the screen too, so the whole masthead vanished. Print stylesheets now stay on paper, and the navy top bar, blue nav, and section links paint again. Second, navigation links stopped gluing together: menus that read "HTMLCSSJavaScriptWeb APIs" on a developer-docs site, or "AboutProductsStack Internal" elsewhere, now render with real spacing between each link. The cause was modern CSS math -> padding written with var() and calc() was being dropped, so a link measured as if it had no breathing room around it.