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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JS Select Topmost Elements</title> </head> <body> <script> // Display lang attribute value of html element alert(document.documentElement.getAttribute("lang")); // Outputs: en // Set background color of body element document.body.style.background = "yellow"; // Display tag name of the head element's first child alert(document.head.firstElementChild.nodeName); // Outputs: meta </script> </body> </html>